妄自菲薄 wàng zì fěi bó

DEFINITIONS

  1. to be unduly humble (idiom)
  2. to undervalue oneself

CHARACTERS

妄 wàng absurd, foolish, reckless; false
自 zì self, private, personal; from
菲 fěi fragrant, luxuriant; the Philippines
薄 bó thin, slight, weak; poor, stingy