Adjective: idiotic ,i-dee'ó-tik
- Insanely irresponsible
"an idiotic idea";
- crackbrained [informal]
- So unreasonable as to invite derision
"the idiotic excuse that the dog ate his homework";
- absurd, cockeyed [informal], derisory, laughable, ludicrous, nonsensical, preposterous, ridiculous, ridic [informal], derisible
See also: crackpot [informal], crazy [informal], daft [Brit, informal], dumb, foolish, half-baked [informal], imbecile, imbecilic, insane, moronic [informal], nutty [informal], screwball [informal], softheaded, stupid, wiggy [US, informal]
Encyclopedia: Idiotic