雄ゆう心しん勃ぼつ勃ぼつじ字FuriganaAudioMeanings1taru-adjective, adverb taking the 'to' particleambitious; aspiringyojijukugo (four-character idiom)›A yojijukugo describing a person's spirit or attitude as full of ambition and drive. Often used in literary or formal contexts.彼かれは雄ゆう心しん勃ぼつ勃ぼつとして新しん事じ業ぎょうに取とり組くんだ。Break this sentence down in the analyzerHe tackled the new venture with great ambition.その若わか者ものは雄ゆう心しん勃ぼつ勃ぼつたる志こころざしを抱いだいていた。Break this sentence down in the analyzerThe young man harbored ambitious aspirations.