complacent

Definitions

Showing smug or uncritical satisfaction with oneself or one's achievements.

Marked by a lack of concern or awareness regarding potential dangers or deficiencies.

Examples

The team became complacent after their early victories and eventually lost the championship.

We cannot afford to be complacent about the threat of climate change.

He grew complacent in his job, assuming his position was secure regardless of his performance.

Synonyms

self-satisfied smug contented unconcerned apathetic indifferent conceited

Antonyms

dissatisfied concerned anxious ambitious alert vigilant discontented