complacency
//kəmˈpleɪ.sən.si//
Noun
complacencySingular
complacenciesPlural
1
A feeling of smug or uncritical satisfaction with oneself or one's achievements, often while unaware of potential dangers or deficiencies.
The team's complacency after their early success led to their eventual defeat.
2
A state of self-satisfaction accompanied by unawareness of actual dangers or problems.
The team's complacency after their early success led to their eventual defeat.