brain-teaser
enigma
conundrum
riddle
pig
dys-
nodus
matter
mountain to climb
skittish
complex
rub
hard
uphill
hard nut to crack
choosey
choosy
tough nut to crack
doo-doo
killer
brainteaser
problem
trouble
stumper
involved
manifold
problemo
crux
task
snag
bitch
ambitious
praemunire
difficult situation
hot potato
in difficulties
mean
unmanageable
uncontrollable
problematic
poser
trickily
metaproblem
torfer
wade
situation
stumblingblock
tough going
rough
how do you do
diff
mountain
challenging
unachievable
torrid
inextricable
swamp
three-pipe problem
rub along
toughness
hard as Chinese algebra
murderous
fiendish
formidability
wrinkle
pisser
crack
harder than Chinese math
diffical techniculties
mountainous
superdifficult
tsuris
overchallenge
supercomplicated
hard time
megachallenge
intractable
jam
jackpot
struggle bus
knot
dilemmaticity
spot
hard-set
fastidious
hard going
enmesh
hard times
snorter
unattainable
unrealizable
straits
head
semihard
pass
shit
undoable
skittish
choosey
choosy
involved
manifold
ambitious
mean
unmanageable
uncontrollable
problematic
rough
challenging
unachievable
torrid
inextricable
hard as Chinese algebra
murderous
fiendish
harder than Chinese math
mountainous
superdifficult
supercomplicated
intractable
hard-set
fastidious
unattainable
unrealizable
semihard
undoable
hard
uphill
trickily
brain-teaser
enigma
conundrum
riddle
pig
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matter
mountain to climb
complex
rub
hard nut to crack
tough nut to crack
doo-doo
killer
brainteaser
problem
trouble
stumper
problemo
crux
task
snag
bitch
praemunire
difficult situation
hot potato
in difficulties
poser
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torfer
situation
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how do you do
diff
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swamp
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toughness
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struggle bus
knot
dilemmaticity
spot
hard times
snorter
straits
head
pass
shit
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rub along
crack
enmesh
riddle
noun
noun
- A difficult problem.
- Any of several mammalian species of the genus Sus, having cloven hooves, bristles and a nose adapted for digging; especially the domesticated animal Sus domesticus.
- A light pinkish-red colour, like that of a pig (also called pig pink).
- A lead container used for radioactive waste.
- A young swine, a piglet (contrasted with a hog, an adult swine).
- A simple dice game in which players roll the dice as many times as they like, either accumulating a greater score or losing previous points gained.
- The general-purpose M60 machine gun, considered to be heavy and bulky.
- Someone who overeats or eats rapidly and noisily.
- The edible meat of such an animal; pork.
- A dirty or slovenly person.
- A police officer.
- A lecherous or sexist man.
- The mold in which a block of metal is cast.
- A device for cleaning or inspecting the inside of an oil or gas pipeline, or for separating different substances within the pipeline. Named for the pig-like squealing noise made by their progress.
- A very obese person.
- An earthenware hot-water jar to warm a bed; a stone bed warmer
- A block of cast metal.
- earthenware, or an earthenware shard
verb
noun
- A problem.
- A structure consisting of a central atom or molecule weakly connected to surrounding atoms or molecules, as for example coordination complexes in inorganic chemistry and protein complexes in biochemistry.
- A multimorphemic word, one with several parts, one with affixes.
- An abnormal mental condition caused by repressed emotions.
- An assemblage of related things; a collection.
- A cluster of wildfires burning in the same vicinity.
- A group of closely related species, often distinguished only with difficulty by traditional morphological methods.
- An organized cluster of thunderstorms.
- A vehement, often excessive psychological dislike or fear of a particular thing.
- A complex number.
- A collection of buildings with a common purpose, such as a university or military base.
- A network of interconnected systems.
verb
adj
- A curve, polygon or other figure that crosses or intersects itself.
- Having the form a + bi, where a and b are real numbers and i is (by definition) the imaginary square root of −1.
- Made up of multiple parts; composite; not simple.
- Whose range is a subset of the complex numbers.
- Whose coefficients are complex numbers; defined over the field of complex numbers.
- Not simple, easy, or straightforward; complicated.
noun
- A difficulty or problem.
- A loan.
- An act of rubbing.
- In the game of crown green bowls, any obstacle by which a bowl is diverted from its normal course.
- Any substance designed to be applied by rubbing.
- A mixture of spices applied to meat before it is barbecued.
verb
- To scour; to burnish; to polish; to brighten; to cleanse; often with up or over.
- To hinder; to cross; to thwart.
- To move (one object) while maintaining contact with another object over some area, with pressure and friction.
- To touch the jack with the bowl.
- To be rubbed against something.
- To rub something against (a second thing).
- To spread a substance thinly over; to smear.
adv
noun
- Crack cocaine.
- A tyre whose compound is softer than superhards, and harder than mediums.
- Hard labor.
- A firm or paved beach or slope convenient for hauling vessels out of the water.
adj
- In a physical form, not digital.
- Having a high energy (high frequency; short wavelength).
- Of silk: not having had the natural gum boiled off.
- Having a comparatively larger or a ninety-degree angle.
- Containing alcohol.
- Having disagreeable and abrupt contrasts in colour or shading.
- Made up of parallel rays, producing clearly defined shadows.
- Strong.
- Sexually aroused; having an erect penis.
- Difficult or requiring a lot of effort to do, understand, experience, or deal with.
- Severe, harsh, unfriendly, brutal.
- Unquestionable, unequivocal.
- Rigid in the drawing or distribution of the figures; formal; lacking grace of composition.
- Tough and muscular.
- High in dissolved chemical salts, especially those of calcium.
- Having the capability of being a permanent magnet by being a material with high magnetic coercivity (compare soft).
- Demanding a lot of effort to endure.
- Far, extreme.
- Velarized or plain, rather than palatalized.
- Of a market: having more demand than supply; being a seller's market.
- Using a manual or physical process, not by means of a software command.
- Hardened; having unusually strong defences.
- Having muscles that are tightened as a result of intense, regular exercise.
- Resistant to pressure.
- hardcore
- Plosive.
- Unvoiced.
adj
- Complicated.
- Many in number, numerous; multiple, multiplied.
- Various in kind or quality; diverse.
- Exhibited at diverse times or in various ways.
noun
- A copy made by the manifold writing process.
- A pipe fitting or similar device that connects multiple inputs or outputs.
- The third stomach of a ruminant animal, an omasum.
- A polygon mesh representing the continuous, closed surface of a solid object
- A topological space that looks locally like the "ordinary" Euclidean space ℝⁿ and is Hausdorff.
adv
verb
noun
noun
- A problem or difficulty with something.
- A stump or base of a branch that has been lopped off; a short branch, or a sharp or rough branch.
- A sausage.
- A tooth projecting beyond the others; a broken or decayed tooth.
- A goal.
- A misnaged, an opponent to Chassidic Judaism (more likely modern, for cultural reasons).
- A dead tree that remains standing.
- A tree, or a branch of a tree, fixed in the bottom of a river or other navigable water, and rising nearly or quite to the surface, by which boats are sometimes pierced and sunk.
- Any sharp protuberant part of an object, which may catch, scratch, or tear other objects brought into contact with it.
- A pulled thread or yarn, as in cloth.
- One of the secondary branches of an antler.
verb
- To obtain or pick up.
- To damage or sink (a vessel) by collision; said of a tree or branch fixed to the bottom of a navigable body of water and partially submerged or rising to just beneath the surface.
- To cut the snags or branches from, as the stem of a tree; to hew roughly.
- To fish by means of dragging a large hook or hooks on a line, intending to impale the body (rather than the mouth) of the target.
- To catch or tear (e.g. fabric) upon a rough surface or projection.
noun
- A difficulty or predicament.
- Crime, offence, wrongdoing.
- Any of a number of criminal offences incurring similar penalties to the original offence of praemunire.
- The penalty for this offence.
- The offence in English law of bringing suit in or obeying a foreign (especially papal) court or authority, thus challenging the supremacy of the Crown. The offence was created by the Statute of Praemunire 1393 (16 Richard II, chapter 5), and abolished by the Criminal Law Act 1967 (chapter 58).
- The writ charging a person with this offence, the writ of praemunire facias.
verb
noun
adj
- Difficult, tricky.
- Intending to cause harm, successfully or otherwise; bearing ill will towards another.
- Low in quality or degree; inferior; poor; shabby.
- Having the mean (see noun below) as its value; average.
- Disobliging; pettily offensive or unaccommodating.
- Ungenerous; stingy; tight-fisted.
- Accomplished with great skill; deft; hard to compete with.
- Of a common or low origin, grade, or quality; common; humble.
- Of little value or worth; worthy of little or no regard; contemptible; despicable.
- Powerful; fierce; strong.
- Without dignity of mind; destitute of honour; low-minded; spiritless; base.
noun
- The middle part of three-part polyphonic music; now specifically, the alto part in polyphonic music; an alto instrument.
- Something which is intermediate or in the middle; an intermediate value or range of values; a medium.
- The average of a set of values, calculated by summing them together and dividing by the number of terms; the arithmetic mean.
- Any function of multiple variables that satisfies certain properties and yields a number representative of its arguments; or, the number so yielded; a measure of central tendency.
- Either of the two numbers in the middle of a conventionally presented proportion, as 2 and 3 in 1:2=3:6.
- A method or course of action used to achieve some result.
verb
- To be of some level of importance.
- To have as intentions of a given kind.
- To intend an ensuing comment or statement as an explanation.https://www.lexico.com/en/definition/i_mean%20I%20mean
- To cause or produce (a given result); to bring about (a given result).
- Of a word, symbol etc: to have reference to, to signify.
- To have conviction in (something said or expressed); to be sincere in (what one says).
- Of a person (or animal etc): to intend to express, to imply, to hint at, to allude.
- To intend (something) for a given purpose or fate; to predestine.
- To intend, to plan (to do); to have as one's intention.
- To lament.
- To convey (a given sense); to signify, or indicate (an object or idea).
noun
- A particularly difficult question or puzzle.
- Someone who, or something which, poses; a person who sets their body in a fixed position, such as for photography or painting.
- A poseur; someone who affects some behaviour, style, attitude or other condition, often to impress or influence others.
- Someone who asks a question or sets a problem.
noun
adj
- Difficult; trying.
- Turbulent.
- Crude; unrefined.
- Approximate; hasty or careless; not finished.
- Violent; not careful or subtle.
- Not polished; uncut.
- Harsh-tasting.
- Somewhat ill; sick; in poor condition.
- Unwell due to alcohol; hungover.
- Loud and hoarse; offensive to the ear; harsh; grating.
- Worn; shabby; weather-beaten.
- Not smooth; uneven.
verb
- To render rough; to roughen.
- To break in (a horse, etc.), especially for military purposes.
- To create in an approximate form.
- To endure primitive conditions.
- To roughen a horse's shoes to keep the animal from slipping.
- To commit the offense of roughing, i.e. to punch another player.
noun
- A quick sketch, similar to a thumbnail but larger and more detailed, used for artistic brainstorming.
- A scuffed and roughened area of the pitch, where the bowler's feet fall, used as a target by spin bowlers because of its unpredictable bounce.
- The unmowed part of a golf course.
- The raw material from which faceted or cabochon gems are created.
- A rude fellow; a coarse bully; a rowdy.
- A piece inserted in a horseshoe to keep the animal from slipping.
adv
noun
- A difficult route.
- Any program which compares two files or sets of files and outputs a description of the differences between them.
- The output of a diff program, a diff file.
verb
- To compare two files or other objects, manually or otherwise.
- To run a diff program on (files or items) so as to produce a description of the differences between them, as for a patch file.
name
noun
- A difficult task or challenge.
- An elevation of land of considerable dimensions rising more or less abruptly, forming a conspicuous figure in the landscape, usually having a small extent of surface at its summit.
- Something very large in size or quantity; a huge amount; a great heap.
- Wine from Malaga made from grapes that grow on a mountain.
- A woman's large breast.
- The twenty-first Lenormand card.
adj
verb
- To solve a difficult problem.
- To change rapidly in register.
- To become debilitated by psychological pressure.
- To form cracks.
- To make a cracking sound.
- To break open or crush to small pieces by impact or stress.
- To make a crack or cracks in.
- To make a sharply humorous comment.
- To open slightly.
- To overcome a security system or component.
- To break down (a complex molecule), especially with the application of heat: to pyrolyse.
- To break apart under force, stress, or pressure.
- To alternate between high and low register in the process of eventually lowering.
- To strike forcefully.
- To cause to yield under interrogation or other pressure.
- To circumvent software restrictions such as regional coding or time limits.
- To tell (a joke).
- To break down or yield, especially under interrogation or torture.
- To cause to make a sharp sound.
- To realize that one is transgender.
- To barely reach, attain to (a measurement, extent).
- To open a canned beverage, or any packaged drink or food.
noun
- An attempt at something.
- A sharp, resounding blow.
- The tone of voice when changed at puberty.
- A program or procedure designed to circumvent restrictions or usage limits on software.
- Vagina.
- The space between the buttocks.
- A narrow opening.
- Any sharp sound.
- A thin and usually jagged space opened in a previously solid material.
- A sharply humorous comment; a wisecrack.
- a meaningful chat.
- Something good-tasting or habit-forming.
- Extremely silly, absurd or off-the-wall ideas or prose.
- Conviviality; fun; good conversation, chat, gossip, or humorous storytelling; good company.
- The sharp sound made when solid material breaks.
- Business; events; news.
- Crack cocaine, a potent, relatively cheap, addictive variety of cocaine; often a rock, usually smoked through a crack-pipe.
adj
adj
noun
- A difficult situation.
- A forceful dunk.
- balls, bollocks, courage, machismo
- A blockage, congestion, or immobilization.
- A song; a track.
- The tree Acacia acuminata, with fruity-smelling hard timber.
- A play during which points can be scored.
- Luck.
- A difficult situation for a pitcher or defending team.
- An informal event where people brainstorm and collaborate on projects.
- A sweet mixture of fruit boiled with sugar and allowed to congeal. Often spread on bread or toast or used in jam tarts.
- An informal, impromptu performance or rehearsal.
- Any of several maneuvers requiring wedging of an extremity into a tight space.
- Sexual relations or the contemplation of them.
- That which one particularly prefers, desires, enjoys, or cares about.
verb
- To get something stuck, often (though not necessarily) in a confined space.
- To block or confuse a radio or radar signal by transmitting a more-powerful signal on the same frequency.
- To brusquely force something into a space; to cram, to squeeze.
- To injure a finger or toe by sudden compression of the digit's tip.
- To give up on a date or some other joint endeavour; to stand up, chicken out, jam out.
- To throw a pitch at or near the batter's hands.
- To play music (especially improvisation as a group, or an informal unrehearsed session).
- To cause congestion or blockage. Often used with "up".
- To attempt to score points.
- To bring (a vessel) so close to the wind that half her upper sails are laid aback.
- To dunk.
- To render something unable to move.
noun
- A difficult situation.
- A jumble of felled timber.
- A large cash prize or money.
- A concentration of surface wood or fuel.
- A large accumulated point bonus, originally awarded after a long set of actions but now often easily available in multiball modes.
- An unexpected windfall or reward.
- A money prize pool which accumulates until the conditions are met for it to be won.
verb
noun
- A difficult situation.
- A maze-like pattern.
- A looping of a piece of string or of any other long, flexible material that cannot be untangled without passing one or both ends of the material through its loops.
- A tangled clump.
- Any knob, lump, swelling, or protuberance.
- A kind of epaulet; a shoulder knot.
- One of a variety of shore birds; red-breasted sandpiper (variously Calidris canutus or Tringa canutus).
- A bond of union; a connection; a tie.
- A non-self-intersecting closed curve in (e.g., three-dimensional) space that is an abstraction of a knot (in sense 1 above).
- A unit of speed, equal to one nautical mile per hour. (From the practice of counting the number of knots in the log-line (as it is paid out) in a standard time. Traditionally spaced at one every ¹⁄₁₂₀ of a mile.)
- Local swelling in a tissue area, especially skin, often due to injury.
- The bulbus glandis.
- The whorl left in lumber by the base of a branch growing out of the tree's trunk.
- A tightened and contracted part of a muscle that feels like a hard lump under the skin.
- A node.
- A group of people or things.
- A unit of indicated airspeed, calibrated airspeed, or equivalent airspeed, which varies in its relation to the unit of speed so as to compensate for the effects of different ambient atmospheric conditions on aircraft performance.
- In omegaverse fiction, a bulbus glandis-like structure on the penis of a male alpha, which ties him to an omega during intercourse.
- A nautical mile.
- The point on which the action of a story depends; the gist of a matter.
- A protuberant joint in a plant.
- The swelling of the bulbus glandis in members of the dog family, Canidae.
verb
noun
- A difficult situation.
- A bill of five-dollar or ten-dollar denomination in dollars.
- A bright lamp; a spotlight.
- The southern redfish, or red horse (Sciaenops ocellatus), which has a spot on each side at the base of the tail.
- The act of spotting or noticing something.
- An official determination of placement.
- A brief advertisement or program segment on television.
- Penalty spot.
- A food fish (Leiostomus xanthurus) of the Atlantic coast of the United States, with a black spot behind the shoulders and fifteen oblique dark bars on the sides.
- A variety of the common domestic pigeon, so called from a spot on its head just above the beak.
- An autosoliton.
- A round or irregular patch on the surface of a thing having a different color, texture etc. and generally round in shape.
- A parking space.
- One who spots (supports or assists a maneuver, or is prepared to assist if safety dictates); a spotter.
- Any of various points marked on the table, from which balls are played, in snooker, pool, billiards, etc.
- A pimple, papule or pustule.
- A stain or disfiguring mark.
- A decimal point; point.
- A location or area.
- Any of the balls marked with spots in the game of pool, which one player aims to pot, the other player taking the stripes.
- A small, unspecified amount or quantity.
adj
verb
- To cut or chip (timber) in preparation for hewing.
- To retouch a photograph on film to remove minor flaws.
- To keep the head and eyes pointing in a single direction while turning.
- To place an object at a location indicated by a spot.
- To support or assist a maneuver, or to be prepared to assist if safety dictates.
- To remove, or attempt to remove, a stain.
- To loan a small amount of money to someone.
- To stain; to leave a spot (on).
- To see, find; to pick out, notice, locate, distinguish or identify.
- To position (a locomotive or car) at a predetermined point, e.g., for loading or unloading.
- To position (an aircraft) on the deck of an aircraft carrier ready for launch by catapult.
- To stain; to blemish; to taint; to disgrace; to tarnish, as reputation.
noun
noun
- a difficult juncture
- the upper part of the human body or the front part of the body in animals; contains the face and brains
- a single domestic animal
- that which is responsible for one's thoughts, feelings, and conscious brain functions; the seat of the faculty of reason
- a person who is in charge
- the front of a military formation or procession
- the pressure exerted by a fluid
- the top of something
- the source of water from which a stream arises
- (grammar) the word in a grammatical constituent that plays the same grammatical role as the whole constituent
- the tip of an abscess (where the pus accumulates)
- the length or height based on the size of a human or animal head
- a dense cluster of flowers or foliage
- the educator who has executive authority for a school
- an individual person
- a user of (usually soft) drugs
- a natural elevation (especially a rocky one that juts out into the sea)
- a rounded compact mass
- the foam or froth that accumulates at the top when you pour an effervescent liquid into a container
- the part in the front or nearest the viewer
- forward movement
- a V-shaped mark at one end of an arrow pointer
- the subject matter at issue
- a line of text serving to indicate what the passage below it is about
- the rounded end of a bone that fits into a rounded cavity in another bone to form a joint
- that part of a skeletal muscle that is away from the bone that it moves
- (computer science) a tiny electromagnetic coil and metal pole used to write and read magnetic patterns on a disk
- (usually plural) the obverse side of a coin that usually bears the representation of a person's head
- the striking part of a tool
- (nautical) a toilet on board a boat or ship
- a projection out from one end
- a membrane that is stretched taut over a drum
- oral stimulation of the genitals
verb
adj
noun
- a difficult juncture
- (baseball) an advance to first base by a batter who receives four balls
- (military) a written leave of absence
- (American football) a play that involves one player throwing the ball to a teammate
- the location in a range of mountains of a geological formation that is lower than the surrounding peaks
- any authorization to pass or go somewhere
- a document indicating permission to do something without restrictions
- a flight or run by an aircraft over a target
- a bad or difficult situation or state of affairs
- one complete cycle of operations (as by a computer)
- an automatic advance to the next round in a tournament without playing an opponent
- a permit to enter or leave a military installation
- a complimentary ticket
- a usually brief attempt
- (sports) the act of throwing the ball to another member of your team
- success in satisfying a test or requirement
verb
- go across or through
- move past
- make laws, bills, etc. or bring into effect by legislation
- for time to move forward
- place into the hands or custody of
- stretch out over a distance, space, time, or scope; run or extend between two points or beyond a certain point
- travel past
- come to pass
- go unchallenged; be approved
- use up a period of time in a specific way
- pass over, across, or through
- transmit information
- disappear gradually
- go successfully through a test or a selection process
- be superior or better than some standard
- accept or judge as acceptable
- allow to go without comment or censure
- transfer to another; of rights or property
- pass into a specified state or condition; sink into
- throw (a ball) to another player
- be inherited by
- cause to pass
- grant authorization or clearance for
- pass from physical life and lose all bodily attributes and functions necessary to sustain life
- eliminate from the body
adj
noun
- A problem or difficult situation.
- Stuff, things.
- Solid excretory product evacuated from the bowels; feces.
- The act of shitting.
- Rubbish; worthless matter.
- Anything exceptional or remarkable.
- (in negations) Anything.
- Nonsense; bullshit.
- The smallest amount of concern or consideration.
- A strong rebuke.
- Any recreational drug (e.g. cannabis, heroin, etc.).
- A nasty, despicable person, used particularly of men.
- (the shit) The best of its kind.
verb
- To defecate.
- To excrete (something) through the anus.
- To fool or try to fool someone; to be deceitful.
- To annoy.
intj
- Used for mere emphasis; heck, hey.
- Used to show displeasure or surprise.
- Expression of worry, failure, shock, etc., often at something seen for the first time or remembered immediately before using this term.
adj
English words for 'a difficult problem'
As you may have noticed, above you will find words for "a difficult problem". Hover the mouse over the word you'd like to know more about to view its definition. Click 
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