unwonted
🇺🇸
/ʌnˈwəʊntɪd/
🇬🇧
/ʌnˈwəʊntɪd/
not common or typical
The teacher was surprised by the student's unwonted silence during class.
선생님은 수업 중 학생의 예상치 못한 침묵에 놀랐습니다.