Crazy synonyms

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

Absurd, astonishing, barmy, bizarre, cock-eyed, crazy-ass, daft, eccentric, fantastic, farcical, fatuous, foolhardy, foolish, grotesque, half-baked, hare-brained, idiotic, ill-conceived, illogical, imbecilic, implausible, impracticable, imprudent, inane, incongruous, incredible, infantile, irrational, laughable, ludicrous, monstrous, nonsensical, odd, outrageous, peculiar, pointless, potty, preposterous, puerile, queer, ridiculous, risible, senseless, shocking, silly, strange, stupid, unbelievable, unrealistic, unreasonable, unthinkable, unwise, unworkable, wackadoo, weird, wild, and wackadoodle are all another word for crazy.

Devoted to, enamoured of, excited, fanatical, fond of, gone on, infatuated with, mad, nuts, nutty, passionate, potty, smitten with, very enthusiastic, very keen on, wild, and sweet on are all synonyms for crazy.