Definition of daft:
sappy, balmy, tomfool, zesty, weak-minded, maniacal, foolish, buggy, featherheaded, bughouse, crazed, barmy, preposterous, certifiable, cockamamie, yeasty, nuts, roughened, insane, zany, crackbrained, zestful, sane, off, scatty, screwball, wacky, nutlike, soft, nonsensical, daffy, meshuga, fruity, batty, loony tunes, wud, cranky, absurd, demented, whacky, simpleminded, brainsick, fatuous, haywire, wild, non compos mentis, crazy as a loon, cockamamy, childish, wacko, cockeyed, bananas, crackpot, amiss, mad as a hatter, cracked, dippy, lunatic, fool, mentally ill, ludicrous, moonstruck, dotty, unbalanced, harebrained, touched, not in your right mind/not right in the head, around the bend, sick in the head, brainless, mental, wrong, loopy, laughable, silly, stark raving mad, maniac, unhinged, round the bend, nutty as a fruitcake, crackers, distraught, chapped, cuckoo, bonkers, inept, gaga, loco, crazy, over-the-top, lunkheaded, senseless, not all there, disordered, unsound, mad, stupid, awry, loony, jerky, psycho, mild, unwise, ridiculous, bubbleheaded, nutty, half-witted, bedlam, asinine, witless, psychotic, goofy, screwy, half-baked, kookie, bats, kooky, alligatored, of unsound mind.
Mr. Watson probably thought that this young man was daft, but it was not his business to say so; he took down his erratic customer's address and said that all his instructions would be attended to forthwith.- "Prince Fortunatus", William Black.
- "Alec Forbes of Howglen", George MacDonald.
- "Between You and Me", Sir Harry Lauder.