Sisyphean
difficult
mug's game
sloggingly
hard going
arduousness
strenuousness
howl at the moon
pull teeth
mission impossible
snorter
backbreaker
struggle
task
uphill
effortfully
futilely
everything
overventurous
put out
hands down
tall
endeavour
laboured
like the clappers
waste of effort
endeavor
waste of energy
strive
bodgery
strivingly
diligence
application
facility
overchallenge
readiness
arduous
grind
arduously
rubegoldbergian
overtedious
comfortably
worst
effortful
careless
uneasy
unspeedy
lightning in a bottle
long row to hoe
old college try
sweaty
tasky
longsome
overhaste
effortlessly
hard time
hard
furiously
marathonic
baroque
rough sledding
hands-down
drudgery-ridden
torrid
taxing
exhaustion
one's socks off
slackadaisical
complicated
dead set
lazily
cumbersome
mean
rashly
headlong
fancy
hard-earned
mental gymnastics
nugatory
Sisyphean labour
at a canter
fight
Herculean
overambitious
sprezzatura
untenty
swing and a miss
two for two
lick and a promise
bang away
ungainly
hard as iron
painful
back
ambitious
Sisyphean
difficult
uphill
overventurous
tall
laboured
arduous
rubegoldbergian
overtedious
effortful
careless
uneasy
unspeedy
sweaty
tasky
longsome
hard
marathonic
baroque
hands-down
drudgery-ridden
torrid
taxing
slackadaisical
complicated
cumbersome
mean
fancy
hard-earned
nugatory
Herculean
overambitious
untenty
two for two
ungainly
hard as iron
painful
ambitious
sloggingly
effortfully
futilely
hands down
strivingly
arduously
comfortably
effortlessly
furiously
one's socks off
lazily
rashly
headlong
hard
mug's game
arduousness
strenuousness
mission impossible
snorter
backbreaker
struggle
task
waste of effort
waste of energy
bodgery
diligence
application
facility
overchallenge
readiness
grind
worst
lightning in a bottle
long row to hoe
old college try
overhaste
hard time
rough sledding
exhaustion
dead set
mental gymnastics
Sisyphean labour
sprezzatura
swing and a miss
lick and a promise
back
howl at the moon
pull teeth
put out
endeavour
endeavor
strive
struggle
fight
bang away
English words for 'both extremely effortful and futile'
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