underachievement
🇺🇸
/ˌʌndərəˈtʃiːvmənt/
🇬🇧
/ˌʌndərəˈtʃiːvmənt/
Performing at a lower level than one is capable of, especially in school.
The teacher was concerned about the student's underachievement in math.
선생님은 학생의 수학에서의 성취감 부족에 대해 우려했습니다.