Word Study
unflagging
THESAURUS
unflagging
ardent, assiduous, constant, continuing, diligent, dogged, enduring, energetic, faithful, fervent, going strong, hard, hardworking, immutable, in full force, in full swing, inalterable, indefatigable, indomitable, industrious, inexhaustible, insistent, invincible, laborious, lasting, loyal, never idle, never-tiring, obstinate, patient, patient as Job, permanent, perseverant, persevering, persistent, persisting, pertinacious, plodding, plugging, preoccupied, rapt, relentless, resolute, sedulous, single-minded, sleepless, slogging, stable, steadfast, steady, strenuous, stubborn, tenacious, tireless, unabated, unabating, unallayed, unbated, unconquerable, undaunted, undiminished, undiscouraged, undrooping, unexhausted, unfaded, unfailing, unfaltering, unflinching, unintermitting, uninterrupted, unnodding, unrelaxing, unrelenting, unremitting, unshaken, unsleeping, unsparing, unswerving, untiring, unwavering, unweakened, unweakening, unwearied, unwearying, unwinking, unwithered, unworn, utterly attentive, vehement, weariless, zealousROGET THESAURUS
unflagging
Perseverance
N perseverance, continuance, permanence, firmness, constancy, steadiness, singleness of purpose, tenacity of purpose, persistence, plodding, patience, sedulity, pertinacy, pertinacity, pertinaciousness, iteration, bottom, game, pluck, stamina, backbone, grit, indefatigability, indefatigableness, bulldog courage, persevering, constant, steady, steadfast, undeviating, unwavering, unfaltering, unswerving, unflinching, unsleeping, unflagging, undrooping, steady as time, unrelenting, unintermitting, unremitting, plodding, industrious, strenuous, pertinacious, persisting, persistent, solid, sturdy, staunch, stanch, true to oneself, unchangeable, unconquerable, indomitable, game to the last, indefatigable, untiring, unwearied, never tiring, through evil report and good report, through thick and thin, through fire and water, per fas et nefas, without fail, sink or swim, at any price, vogue la galere, never say die, give it the old college try, vestigia nulla retrorsum, aut vincer aut mori, la garde meurt et ne se rend pas, tout vient a temps pour qui sait attendre.For further exploring for "unflagging" in Webster Dictionary Online