形容词不倦的，坚持不懈的
1. 不倦：unwearied /疲倦的/不累的/孜孜不倦的/ | unwearying /不倦/ | unweathered /未风化的/未经风化的/
adj
1. showing sustained enthusiastic action with unflagging vitality
e.g. an indefatigable advocate of equal rights
a tireless worker
unflagging pursuit of excellence
Synonym: indefatigable tireless unflagging