thickheaded adj : used informally [syn: blockheaded, boneheaded, fatheaded, loggerheaded, thick, thick-skulled, wooden-headed]

English

Adjective

1. stupid, obtuse or dumb

beetleheaded, blockheaded, blunt, blunt-witted, chuckleheaded, dim, dim-witted, dopey, dull, dull of mind, dull-headed, dull-pated, dull-witted, fat-witted, fatheaded, gross-headed, heavy, hebetudinous, numskulled, obtuse, slow, slow-witted, sluggish, thick, thick-brained, thick-headed, thick-pated, thick-witted, thickskulled, wooden