batshit
cuckoo for Cocoa Puffs
have a screw loose
off the deep end
bum head
crazo
mad
loony
fucktarded
wackadoodle
insane
loony tune
unbalanced
spaz
dingbat
poop
cockamamie
stunod
jimjam
rocket
rabid
arsehead
cracked as an egg
asshead
nutter
knucklehead
inordinate
nut-bar
nutzoid
fucktwat
half-wit
shitfucker
shitfuck
cunthead
cuntfuck
cuntfucker
knob-end
loon
out of one's tree
unconscionable
cock
off one's tree
lame
dipshit
out of one's gourd
off one's box
out of one's box
gonk
mug
shit stain
steamer
shithead
knobtwat
baboon
airhead
nerk
bozo
craphead
lunkheaded
lackwit
schmo
go batshit
wacko
to distraction
weeniehead
superunbelievable
crumbum
crazy as a soup sandwich
yutz
ungodly
apeth
round the bend
batcrap
irrationalistic
poke
ninny
dementia
bucket head
mad as a mongoose
crazy as a pet coon
batpoop
hyphy
buckethead
mad as a hatter
looney-tunes
ziphead
nitwit
nutso
harebrained
cockbag
neddy
dingus
fuckhead
diphead
looney tunes
mouth breather

English words for 'Extremely irrational or unreasonable, insane, crazy.'

As you may have noticed, above you will find words for "Extremely irrational or unreasonable, insane, crazy.". Hover the mouse over the word you'd like to know more about to view its definition. Click search related words by phrase or description. to find a better fitting word. Finally, thanks to ChatGPT, the overall results have been greatly improved.

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