thickheaded
AdjectiveWordNet 3.0
Adjective (1)
- (used informally) stupidSynonyms: blockheadedboneheadedduncicalduncishfatheadedloggerheadedthickthick-skulledwooden-headed
Webster's Dictionary (GCIDE)
Thick-headed \Thick"-head`ed\, a. Having a thick skull; stupid. [1913 Webster]