Synonyms for Bone-headed:

adj.

•foolish (adjective)
cretinous, foolish, dopey, knuckle-headed, blockheaded, nitwit, dumb, absurd, goofy, chuckle-headed, lame-brained, dotty, asinine, ignorant, idiotic, imbecilic, moronic, inane, crackpot, dim-witted, doltish, nonsensical, crazy, blithering, brainless, half-witted, meat-headed, loony.