untiring
🇺🇸
/ʌnˈtaɪərɪŋ/
🇬🇧
/ʌnˈtaɪərɪŋ/
working hard and not getting tired easily
The teacher was untiring in her efforts to help every student succeed.
선생님은 모든 학생이 성공할 수 있도록 노력하는 데 지치지 않았습니다.