“不悔改”的英语可以翻译为：impenitency ...

那些拒不悔改的人，他说，将会受到惩罚。Those who refuse to repent, he said, will be punished.嗜赌的人是死不悔改的乐天派。Gamblers are incorrigible optimists.他与那些死不悔改的囚犯打交道.He has to associate with tough criminals....