self-effacement

/S EH1 L F IH0 F EY0 S M AH0 N T/
noun
  1. 1

    The act of keeping oneself in the background, as in humility.

    โ€œJohn likes to remain unnoticed and does so naturally through the self-effacement found in his personality.โ€

Source: https://en.wiktionary.org/wiki/self-effacement