Crazy Synonyms

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

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

Very enthusiastic, fanatical, very keen on, infatuated with, devoted to, wild, nutty, gone on, sweet on, passionate, excited, enamoured of, smitten with, fond of, mad, nuts, and potty.