翻然悔悟

fānránhuǐwù
  1. to see the error of one's ways
  2. to make a clean break with one's past

CEDICT

很快醒悟过来。

重編國語辭典

Entry Composition

1 翻然 fānrán
  1. suddenly and completely (realize, change one's strategy etc)
  2. also written 幡然 fānrán
2 悔悟 huǐwù to repent