cocksurecock•sure /ˌkɒk'ʃʊə,-'ʃɔːʳ/

adj 非正式

1. 过于自信的，自以为是的

• He's so cocksure - I'd love to see him proved wrong. 他如此自以为是——我真想看到他被证明是错误的。

2. 肯定的，坚定不移的

• He was cocksure that he was able to complete the task on time. 他坚信他能按时完成任务。