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Synonyms

unrelenting

American  
[uhn-ri-len-ting] / ˌʌn rɪˈlɛn tɪŋ /

adjective

  1. not relenting; not yielding or swerving in determination or resolution, as of or from opinions, convictions, ambitions, ideals, etc.; inflexible.

    an unrelenting opponent of the Equal Rights Amendment.

    Synonyms:
    remorseless, cruel, pitiless, ruthless, unmerciful, merciless, relentless
  2. not easing or slackening in severity.

    an unrelenting rain.

    Synonyms:
    inexorable, implacable, unremitting
  3. maintaining speed, effort, vigor, intensity, rate of advance, etc..

    an unrelenting attack.


unrelenting British  
/ ˌʌnrɪˈlɛntɪŋ /

adjective

  1. refusing to relent or take pity; relentless; merciless

  2. not diminishing in determination, speed, effort, force, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • unrelentingly adverb
  • unrelentingness noun

Etymology

Origin of unrelenting

First recorded in 1580–90; un- 1 + relent + -ing 2

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Checchi, in particular, barraged voters with an unrelenting flood of ads.

From Los Angeles Times • Mar. 25, 2026

Residents described headaches and an unrelenting bitter taste in their mouths as the stench of smoke filled their homes.

From Salon • Mar. 17, 2026

After decades of unrelenting attention to career and children, she loved the idea of tuning out the noise and using her hands.

From The Wall Street Journal • Mar. 4, 2026

Despite the snags, the joint effort had brought the building closer together in the face of the unrelenting Russian attacks, he said.

From Barron's • Feb. 26, 2026

It is a remarkable essay, tightly argued and organized, passionate and unrelenting.

From "An American Plague: The True and Terrifying Story of the Yellow Fever Epidemic of 1793" by Jim Murphy