Synonyms and Antonyms of tireless
- a tireless advocate for human rights
assiduous, conscientious, diligent, meticulous, painstaking, sedulous
determined, dogged, patient, persevering, persistent, pertinacious, plodding, relentless, steadfast, steady, stubborn, tenacious, unabated, unfailing, unfaltering, unflinching, unrelenting, unremitting, unwavering
active, busy, dynamic, energetic, feverish, spirited, vigorous
indolent, lackadaisical, laggard, lazy, listless, shiftless, slothful, sluggish
apathetic, casual, desultory, languid, spiritless
beat, broken, burned-out (or burnt-out), done in, drained, enervated, jaded, overtaxed, overworked, played out, sapped, spent, tuckered (out), wearied, worn-out