numskulled Synonyms

addled stupid tedious terebrate thick thickheaded bee-brained boofheaded daffy dim-witted feather-brained gaumless half-assed blunderheaded dim-wittedly dumb as a stick dumb dummy sluggish slow backward beetle-headed besotted blockheaded blockish boring brainless buffle-headed daft dense dim doltish dumb feeble-minded foolish shallow simple fatuus