cocky
/ˈkɑki/
adjective
- Overconfident in a way that annoys other people; showing too much pride in one's own abilities.
- The rookie player was a bit cocky after scoring his first goal, but the coach warned him to stay humble.
- His cocky smile made it clear he thought he was better than everyone else.
- She had a cocky attitude during the interview, which didn't impress the hiring manager.