the fact of showing that you are very sorry for something bad you have done in the past, and wish that you had not done it

This was an extremely violent crime, for which the boy showed no repentance. 这是一起极其暴力的罪行，男孩对此毫无悔意。

Her passionate repentance for her sins is real. 她对自己罪过的积极悔改是诚心诚意的。