台Taivo A Taiwan Mandarin dictionary

晚節不保

wǎnjiébùbǎo

ㄨㄢˇ ㄐㄧㄝˊ ㄅㄨˋ ㄅㄠˇ

Simplified 晚节不保

1(idiom) to tarnish one's reputation in later life; to lose prestige at a later stage

Keep 晚節不保 and it comes back until you know it.