cocksure
🇺🇸
/ˌkɑːkˈʃʊr/
🇬🇧
/ˌkɒkˈʃʊə(r)/
overconfident in a way that is annoying to others
The new employee was so cocksure that he didn't listen to anyone's advice.
새로운 직원은 너무 자신에 대한 확신이 있었기 때문에 아무도 조언을 듣지 않았습니다.