基本解释adj.惋惜的；遗憾的；后悔的同根派生 英汉例句用作形容词 (adj.)I am regretful for what I have done.我对我的所为深感遗憾。I am regretful for hurting her feelings.我后悔伤害了她的感情。I am never regretful to choose the major by now.我至今仍不后悔我选择这个专业。