complacent

形容词 complacent:

1. contented to a fault with oneself or one's actions
   同义词：self-satisfied, self-complacent

1. His book was an eye opener to complacent young men.
   对自满的年轻人来说，他的这本书有启发作用。
2. He shows a complacent smile.
   他得意地笑了。
3. We must not be complacent about our achievements.
   我们决不能满足于自己的成绩。

com.pla.cent

adj.（形容词）
Contented to a fault; self-satisfied and unconcerned:
自满的：对缺点的满意；自我满足且不关心：
例句：
He had become complacent after years of success.
成功多年后他变得自我满足起来

Eager to please; complaisant.
期望取悦的；殷勤的

来源：
Latin complacôns complacent- [present participle of] complacôre [to please]
拉丁语 complacôns complacent- [] complacôre的现在分词 [取悦]
com- [intensive pref.] * see com-
com- [前缀，表加强词义] *参见 com-
placôre [to please] * see pl3k-
placôre [取悦] *参见 pl3k-

【引伸】
compla.cently
adv.（副词）