Synonyms of crazy in English:

crazy


See definition of crazy

adjective

1‘all the publicity nearly sent her crazy’

SYNONYMS
mad, insane, out of one's mind, deranged, demented, not in one's right mind, crazed, lunatic, non compos mentis, unbalanced, unhinged, unstable, disturbed, distracted, mad as a hatter, mad as a March hare, stark mad
British sectionable
informal mental, off one's head, out of one's head, off one's nut, nutty, nutty as a fruitcake, off one's rocker, not right in the head, not quite right in the head, round the bend, raving mad, stark raving mad, bats, bonkers, cuckoo, loopy, loony, bananas, loco, dippy, screwy, with a screw loose, touched, gaga, not all there, off the wall, out to lunch, not right upstairs
British informal barmy, batty, crackers, barking, barking mad, stark staring mad, doolally, round the twist, off one's trolley, as daft as a brush, not the full shilling, one sandwich short of a picnic, up the pole, away with the fairies
North American informal buggy, nutsy, nutso, out of one's tree, meshuga, squirrelly, wacko, gonzo
Canadian, Australian, New Zealand informal bushed
Australian informal yarra
New Zealand informal porangi
ANTONYMS

sane

2‘children get all sorts of crazy ideas’

SYNONYMS
absurd, preposterous, ridiculous, ludicrous, farcical, laughable, risible
idiotic, stupid, foolish, foolhardy, unwise, imprudent, ill-conceived, silly, inane, puerile, infantile, fatuous, imbecilic, hare-brained, half-baked
unreasonable, irrational, illogical, nonsensical, pointless, senseless, impracticable, unworkable, unrealistic
outrageous, wild, shocking, astonishing, monstrous
unbelievable, incredible, unthinkable, implausible
peculiar, odd, strange, queer, weird, eccentric, bizarre, fantastic, incongruous, grotesque
informal cock-eyed
British informal barmy, daft, potty
North American informal crazy-ass
US informal wackadoo, wackadoodle
ANTONYMS

sensible

3‘people in Barbados are just crazy about cricket’

SYNONYMS
very enthusiastic, passionate, fanatical, excited
very keen on, enamoured of, infatuated with, smitten with, devoted to, fond of
informal wild, mad, nutty, nuts, gone on
British informal potty
informal, dated sweet on
ANTONYMS

apathetic, indifferent


Phrases

    like crazy

    1‘we are just working like crazy to make what we have efficient’


    SYNONYMS
    energetically, enthusiastically, madly, with a will, for all one is worth, passionately, intensely, ardently, fervently
    informal like mad, hammer and tongs
    British informal, dated like billy-o

    2‘you were driving like crazy when something punctured one of the tyres’


    SYNONYMS
    fast, furiously, as fast as possible, hurriedly, quickly, rapidly, speedily, hastily
    informal like mad, hammer and tongs, at warp speed