不矜不伐
bù​jīn​bù​fá

modest

  1. 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
  2. 矜 jīn
    to boast
    (bound form) to brag; to boast; to pride oneself on something
  3. 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
  4. 伐 fá
    to boast
    (literary) to boast or brag about one's own merits or deeds