/ kəmˈpleɪsnsi; NAmE / noun
[ U ] (usually disapproving ) a feeling of satisfaction with yourself or with a situation, so that you do not think any change is necessary; the state of being complacent :
Despite signs of an improvement in the economy, there is no room for complacency.
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WORD ORIGIN
mid 17th cent.: from medieval Latin complacentia , from Latin complacere to please.