adj.自负的；过于自信的

If I becoming overconfident I will recall my failures. 自高自大时，我要追寻失败的记忆。

Having scored a point, he made the mistake of being overconfident. 得分后，他犯了过分自信的错误。

People who are overconfident tend to neglect their deficiencies. 过分自信的人容易忽视自己的不足。

Don't assume more responsibility than you can handle. Don't be overconfident. 不要承担超过你承受能力的责任。不要过于自信。

In fact, Democrats have grown so buoyant, overconfident Republicans say... 实际上，民主党非常轻松，过于自信的共和党人说...