From Longman Dictionary of Contemporary Englishcomplacentcom‧pla‧cent /kəmˈpleɪsənt/ adjectivePROUDpleased with a situation, especially something you have achieved, so that you stop trying to improve or change things – used to show disapprovalThere’s a danger of becoming complacent if you win a few games.a complacent attitude towards the problemcomplacent aboutWe simply cannot afford to be complacent about the future of our car industry. —complacently adverbExamples from the Corpuscomplacent• We've been winning, but we're not going to get complacent.• As long as the presence of doubt is detected anywhere, neither faith nor knowledge can ever be complacent.• But people do it; then things blow up; then people are careful for a while; then people get complacent.• I would have been insufferably snobbish and complacent.• The 4-0 Vikings had one this week to allow WarrenMoon to tell all his young teammates not to get complacent.• He said that we have become complacent about child labour, and that the situation is much worse than it appears.• Happy but not complacent - our aim must be 100% Good to Excellent.• She can cook for hours and feel almost complacent, she says.complacent about• The nation cannot become complacent about the quality of our schools.Origincomplacent(1600-1700)Latin present participle of complacere"to please greatly", from com- ( → COM-) + placere"to please"