Synonyms and Antonyms of unflagging
- being rewarded for the unflagging zeal with which she led the fund-raising campaign
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