a. having or marked by confidence or assurance
s. not liable to error in judgment or action
a. 有信心的, 有把握的
1. She is confident that she will pass the exam.
她相信自己会通过考试。
2. Being confident can help you succeed in interviews.
自信可以帮助你在面试中取得成功。
3. He spoke with a confident voice during the presentation.
他在演讲中用自信的声音发言。