complacency
/kəmˈpleɪsənsi/
noun
- A feeling of smug or uncritical satisfaction with oneself or one's achievements, often without awareness of potential problems or dangers.
- The company's complacency about its old products allowed competitors to take over the market.
- Complacency is dangerous for drivers who think they never make mistakes.
- After years of success, a sense of complacency set in among the staff.
Synonyms