say it: kuhm-PLAY-suhnt
complacent is an adjective meaning "contented to a fault with oneself or one's actions". It carries one recorded sense.
contented to a fault with oneself or one's actions
“he had become complacent after years of success”
“his self-satisfied dignity”
Definitions, synonyms and semantic relations for complacent come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.