unprofessionally
🇺🇸
/ˌʌnprəˈfeʃənəli/
🇬🇧
/ˌʌnprəˈfeʃənəli/
behaving in a way that is not suitable for a person's job or career
He was fired for behaving unprofessionally at work.
그는 직장에서 전문적이지 않은 행동을 해서 해고당했습니다.