The meaning of RELENTLESS is showing or promising no abatement of severity, intensity, strength, or pace : unrelenting. How to use relentless in a sentence.

RELENTLESS definition: not easing or slackening; maintaining speed, vigor, etc.. See examples of relentless used in a sentence.

(Definition of relentless from the Cambridge Academic Content Dictionary © Cambridge University Press)

Someone who is relentless is determined to do something and refuses to give up, even if what they are doing is unpleasant or cruel. Relentless in his pursuit of quality, his technical ability was remarkable.

1. Unyielding in severity or strictness; unrelenting: relentless persecution. 2. Steady and persistent; unremitting: a relentless drumbeat.

Definition of relentless adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

unrelenting: relentless pursuit. unrelenting: a relentless enemy. re•lent′less•ness, n. rigid, unbending, obdurate, adamant, unyielding. See inflexible. merciful. In Lists: Words ending in "less", New …

Apr 17, 2026 · Adjective relentless (comparative more relentless, superlative most relentless) Unrelenting or unyielding in severity. Unremitting, steady and persistent.

Incapable of relenting; unmoved by pity; unpitying; insensible to the distress of others; destitute of tenderness. Synonyms Implacable, etc. See inexorable, and list under unrelenting. from the GNU …

Definition of relentless. English dictionary and integrated thesaurus for learners, writers, teachers, and students with advanced, intermediate, and beginner levels.