晚节不保
wǎn​jié​bù​bǎo

to fail to maintain one's integrity in later years

  1. 晚节 晚節 wǎn​jié
    integrity in one's later years
    The moral character or integrity maintained during one's old age
  2. 不 bù adverb
    not
    Negative adverb used before verbs, adjectives, and other adverbs to indicate negation; also used as a bound-form prefix to form terms with opposite meanings
  3. 保 bǎo verb
    to maintain
    to maintain; to keep or preserve in an original state