あたまよわ 頭の弱い Show inflections LinksSentence search for 頭の弱いSentence search for あたまのよわいKanji details for 頭 and 弱Edit in JMdict Expressions (phrases, clauses, etc.), I-adjective (keiyoushi)1. dim witted; bird-brained; dullard Discussions Log in to talk about this word.