Meaning of TIRELESS in English

TIRELESS

If you describe someone or their efforts as ~, you approve of the fact that they put a lot of hard work into something, and refuse to give up or take a rest.

...Mother Teresa’s ~ efforts to help the poor.

ADJ approval

~ly

He worked ~ly for the cause of health and safety.

ADV: ADV with v

Collins COBUILD.      Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) .