むだぼねお 無駄骨を折る Show inflections LinksSentence search for 無駄骨を折るSentence search for むだぼねをおるKanji details for 無, 駄, 骨 and 折Edit in JMdict Expressions (phrases, clauses, etc.), Godan verb with 'ru' ending1. to waste one's efforts; to work to no (useful) effectRare term, Idiomatic expression Discussions Log in to talk about this word.