cracked as an egg
crazy as a cootie
crazy as a cootie bug
nutzoid
gone fishing
off one's onion
off the beam
off one's rocker
hatstand
off one's chump
crackers
nutso
bughouse
off one's head
out of one's mind
stark raving mad
insane in the membrane
loony tunes
demented
becrazed
stark staring mad
barking mad
jimjam
meshuggener
not right in the head
crazy as a shithouse rat
gobaloon
lunatical
lose one's mind
deranged
insano
loony
potty
off the rails
bananapants
mad as a box of frogs
nutballs
crazy as a bedbug
nuts
cuckoo for Cocoa Puffs
mooner
gelt
go potty
loopy
insaniac
crazy as a soup sandwich
reality challenged
go mad
cray
bananas
cooked
jiggy
buggish
loco
loced out
crazypants
banoodles
bammy
gaga
wiggy
crazo
cray-cray
lunatic
mentalist
nucking futs
daft
crazy-ass
psycho
round the bend
not wise
insanity
looney tunes
funny in the head
batshit
nut-bar
unglued
drive someone crazy
plumb crazy
Ophelian
maniac
madman
doolally
mad as a March hare
mad
nutcase
fruitloop
cracky
dementia
up the wall
one brick short of a full load
toys in the attic
crazed
half-crazed
gobsmacked

English words for 'Utterly crazy or insane.'

As you may have noticed, above you will find words for "Utterly crazy or insane.". 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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