Complacency is being complacent about a situation.
例句
...a worrying level of complacency about the risks of infection from AIDS...对感染艾滋病的危险毫不在意,实在堪忧She warned that there was no room for complacency on inflation.她警告说对待通货膨胀不能有一丝的懈怠。
英汉词典释义
n.
自满;自得;自鸣得意
a warning against complacency不要自满的告诫Be modest in learning,for complacency is the enemy of study.学习要虚心,自满是敌人。Complacency could easily result in tragedy.自满容易道致悲剧。
英英词典释义
Noun
1. the feeling you have when you are satisfied with yourself;