regret² n [C,U] sadness that you feel about something because you wish it had not happened or that you had not done it 懊悔; 惋惜; 遗憾: + at The company expressed deep regret at the accident. 公司对这宗事故深表遗憾。 have regrets about Carl said he had no regrets about his decision. 卡尔说他对自己的决定不感到后悔。