よわむし 弱虫 Common word Wanikani level 9 Play audio LinksSentence search for 弱虫Sentence search for よわむしKanji details for 弱 and 虫Edit in JMdict Noun, Na-adjective (keiyodoshi), Noun which may take the genitive case particle 'no'1. coward; weakling; scaredy cat; wimp; sissy Discussions Log in to talk about this word.