プログレッシブ和英中辞典(第4版)の解説
はんもん【煩×悶】
〔気苦労〕worry ((about, over))；〔心配事〕a worry；〔苦悶〕anguish
煩悶する be worried [troubled] ((about, over))
彼は仕事に対する煩悶を打ち明けた
He confided his anxiety [worries] about his job to me.
煩悶のあまり髪の毛をかきむしった
I tore my hair in anguish.
事業の失敗を気にして煩悶している
He is 「shattered by [in anguish over] the failure of his business.