Synonyms of tireless in English:

tireless


See US English definition of tireless

See UK English definition of tireless

See Spanish definition of infatigable

adjective

1‘a tireless worker for the party’

SYNONYMS
vigorous, energetic, industrious, determined, resolute, enthusiastic, keen, zealous, forceful, strong, Herculean, spirited, dynamic, intense, dogged, tenacious, persevering, stout, pertinacious
untiring, unwearied, unflagging, unremitting, indefatigable, unshakeable, unrelenting, unswerving
ANTONYMS

lazy, half-hearted