ぼうようたん 亡羊の嘆 LinksSentence search for 亡羊の嘆Sentence search for ぼうようのたんKanji details for 亡, 羊 and 嘆Edit in JMdict Expressions (phrases, clauses, etc.), Noun1. bemoaning the frustration of reaching truth (for surplus of academic paths); being at a lossIdiomatic expression Discussions Log in to talk about this word.