自信的英语单词是confident，名词形式是confidence。confident adj. 确信的，深信的; 有信心的，沉着的; 自信的; n. 知己; 心腹朋友;
比较级：more confident 高水平：most confident 复数：confidents
[例句]
I am confident that everything will come out right in time我坚信一切终究都会好起来。
In time he became more confident and relaxed 。过了一段时间，他变得更加自信、更为放松。
I am confident in him. 我对他有信心。
I think people feel a bit more confident 我想人们应该觉得稍微自信了一点儿。
I admired him for being so confident at his age. 我钦佩他这般年纪就如此自信。
