The Oxford Thesaurus An A-Z Dictionary of Synonyms - daftadj.

1) foolish, silly, giddy, senseless, absurd, ridiculous, stupid, nonsensical, fatuous, fatuitous, imbecile or imbecilic, idiotic, moronic, obtuse, cretinous, boneheaded, fat-headed, dim-witted, witless, asinine, attocerebral, weak-minded, simple-minded, brainless, feeble-minded, feather-brained, rattle-brained, hare-brained, slow-witted, halfwitted, fat-witted, addle-pated, addle-brained, Brit gormless; Colloq dumb, dopey or dopy, daffy; Slang cock-eyed, US cockamamie or cockamamy, running on 'Empty': He has the daft idea that he will be appointed managing director. 2) See crazy, 1, above. 3) daft about. mad about, infatuated with, besotted by or with, sweet on, Colloq nuts about, crazy about: Those two are daft about each other.