Complacency is being complacent about a situation.
例句
...a worrying level of complacency about the risks of infection from AIDS...對感染艾滋病的危險毫不在意,實在堪憂She warned that there was no room for complacency on inflation.她警告說對待通貨膨脹不能有一絲的懈怠。
英漢詞典釋義
n.
自滿;自得;自鳴得意
a warning against complacency不要自滿的告誡Be modest in learning,for complacency is the enemy of study.學習要虛心,自滿是敵人。Complacency could easily result in tragedy.自滿容易道致悲劇。
英英詞典釋義
Noun
1. the feeling you have when you are satisfied with yourself;