| blockheaded | (adj) (used informally) stupid, Syn. boneheaded, wooden-headed, duncish, thick, thickheaded, duncical, loggerheaded, fatheaded, thick-skulled |
| Blockhead | n. [ Block + head. ] A stupid fellow; a dolt; a person deficient in understanding. [ 1913 Webster ] The bookful blockhead, ignorantly read, |
| Blockheaded | a. Stupid; dull. [ 1913 Webster ] |
| Blockheadism | n. That which characterizes a blockhead; stupidity. Carlyle. [ 1913 Webster ] |