プログレッシブ和英中辞典(第4版)の解説
らんぎょう【乱行】
❶〔乱暴な行為〕violent conduct
酔うと乱行に及ぶ
He becomes violent when he drinks too much.
❷〔品行が乱れていること〕misconduct；〔放蕩(ほうとう)〕dissipation, a dissipated life
このごろだいぶご乱行だね
You're really living fast and loose these days, aren't you?
彼の乱行は目に余る
His wild life is just too much.