1. Devoid of good sense or judgment
   "His daft decision cost him the game";
   - foolish, dumb, stupid, imbecilic, imbecile
    
2. [Brit, slang] Insane, strange, eccentric or stupid
   "it used to drive my husband daft"; "He's daft as a brush, always coming up with crazy ideas";
   - balmy [archaic, slang], barmy [slang], bats [slang], batty [slang], bonkers [slang], buggy [N. Amer, slang], cracked [slang], crackers [slang], dotty [Brit, slang], fruity [slang], haywire [slang], kooky [slang], kookie [slang], loco [slang], loony [slang], loopy [slang], nuts [slang], nutty [slang], round the bend [slang], around the bend [slang], wacky [slang], whacky [slang], daffy [slang], dippy [slang], doolally [Brit, slang], wacko [slang], daft as a brush [Brit, slang], potty [Brit, slang], round the twist [Brit, slang], dumbass [N. Amer, slang], nutsy [N. Amer, slang], barking mad [Brit, slang], mental [slang], barking [Brit, slang], bughouse [N. Amer, slang], cuckoo [slang]

Derived forms: daftest, dafter

See also: absurd, anserine, asinine, birdbrained [informal], blockheaded [informal], boneheaded [informal], chuckleheaded [informal], cloddish, cockeyed [informal], dense, derisible, derisory, derp [informal], dim [informal], doltish, dopey, dopy, dull, dumb, duncical [informal], duncish [informal], dunderheaded [informal], fatheaded [informal], fatuous, fond, foolish, gaumless [Brit, archaic, informal], goofy [informal], gooselike, goosey, goosy, gormless [Brit, informal], harebrained [informal], idiotic, ill-advised, ill-conceived, impolitic, imprudent, inadvisable, inane, insane, jerky, knuckleheaded [informal], laughable, loggerheaded [informal], ludicrous, lumpen, lumpish, mad, mindless, misbegotten, misguided, muttonheaded [informal], nitwitted [informal], nonsensical, obtuse, pea-brained [informal], preposterous, rattlebrained, rattlepated, ridic [informal], ridiculous, scatterbrained, scatty [Brit, informal], senseless, silly, slow, soft-witted, stupid, thick [informal], thickheaded [informal], thick-skulled [informal], thick-witted [informal], unadvisable, unadvised, unintelligent, unthinking, unwise, vacant, vacuous, wacky, weak, whacky, witless, wooden-headed [informal], yokel-like, zany

Encyclopedia: Daft, Richard