Meaning of TIRELESS in English

TIRELESS

/ ˈtaɪələs; NAmE ˈtaɪərləs/ adjective

( approving ) putting a lot of hard work and energy into sth over a long period of time

SYN indefatigable :

a tireless campaigner for human rights

►  tire·less·ly adverb

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.