あたまにぶ 頭の鈍い Show inflections LinksSentence search for 頭の鈍いSentence search for あたまのにぶいKanji details for 頭 and 鈍Edit in JMdict Expressions (phrases, clauses, etc.), I-adjective (keiyoushi)1. dim-witted; airheaded; bird-brained; dim; dullard; blockheaded Discussions Log in to talk about this word.