complacent Meaning, Definition & Usage

  1. adjective satellite contented to a fault with oneself or one's actions
    self-complacent; self-satisfied.
    • he had become complacent after years of success
    • his self-satisfied dignity

WordNet

Com*pla"cent adjective
Etymology
L. complacens very pleasing, p. pr. of complacere; com- + placere to please: cf. F. complaisant. See Please and cf. Complaisant.
Definitions
  1. Self-satisfied; contented; kindly; as, a complacent temper; a complacent smile.
    They look up with a sort of complacent awe . . . to kings. Burke.

Webster 1913