1. in a confident or arrogant manner; with excessive self-assurance
Usage: informal; often implies unwarranted or annoying confidence

Examples

• He cockily announced that he would win the competition without any practice.
• She walked into the room cockily, as if she owned the place.
• The young athlete spoke cockily about his abilities, which annoyed his teammates.
• He cockily dismissed his opponent's skills before the match even began.
• She smiled cockily after acing the test she hadn't studied for.
• The candidate answered the interview questions cockily, showing little respect for the panel.