- pleased, especially with oneself or one’s merits, advantages, situation, etc., often without awareness of some potential danger or defect; self-satisfied: The voters are too complacent to change the government.
- pleasant; complaisant.
- pleased or satisfied, esp extremely self-satisfied
- an obsolete word for complaisant
1650s, “pleasing,” from Latin complacentem (nominative complacens) “pleasing,” present participle of complacere “be very pleasing” (see complacence). Meaning “pleased with oneself” is from 1767. Related: Complacently.