Found 2 items, similar to boneheaded.
English → English (WordNet) Definition: boneheaded boneheaded adj : used informally [syn: blockheaded, fatheaded, loggerheaded, thick, thickheaded, thick-skulled, wooden-headed]
English → English (gcide) Definition: boneheaded boneheaded \bone"head*ed\ adj. very stupid; -- used of people or actions. [informal] -- bone"head*ed*ness, n. Syn: blockheaded, fatheaded, loggerheaded, thick, thickheaded, thick-skulled, wooden-headed. [WordNet 1.5]