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relentless

[ ri-lent-lis ]

/ rɪˈlɛnt lɪs /

SEE SYNONYMS FOR relentless ON THESAURUS.COM

adjective

that does not relent; unyieldingly severe, strict, or harsh; unrelenting: a relentless enemy.

Origin of relentless

First recorded in 1585–95; relent + -less

SYNONYMS FOR relentless

rigid, unbending, obdurate, adamant, unyielding. See inflexible.

SEE SYNONYMS FOR relentless ON THESAURUS.COM

ANTONYMS FOR relentless

merciful.

SEE ANTONYMS FOR relentless ON THESAURUS.COM

OTHER WORDS FROM relentless

re·lent·less·ly, adverb re·lent·less·ness, noun

Words nearby relentless

releaser, releasing factor, releasing mechanism, relegate, relent, relentless, relenza, relevance, relevant, relevé, relexify

Example sentences from the Web for relentless

This was achieved only by a relentless program of technical advances.

Flight 8501 Poses Question: Are Modern Jets Too Automated to Fly? |Clive Irving |January 4, 2015 |DAILY BEAST
Make way not for ducklings but for relentless darkness: so the operative mantra goes.

The Internet Embedded in Your Head |J.T. Price |November 21, 2014 |DAILY BEAST
Now it is a race against time to see which moves faster—those suffering from the relentless problems or those who can stop them.

What’s Worse Than Ebola in West Africa? Almost Everything |Barbie Latza Nadeau |October 23, 2014 |DAILY BEAST
Nothing illustrates this more tangibly than his relentless campaign against modern architecture.

Imagining Prince Charles as King Makes All of Britain Wish They Could Leave Like Scotland |Clive Irving |September 17, 2014 |DAILY BEAST

The relentless pace required us to impose a certain degree of emotional distance to get the job done.

The Resilient City: New York After 9/11 |John Avlon |September 11, 2014 |DAILY BEAST
It seems to be doomed to extermination through the relentless hunting of it for its fur.

Elementary Zoology, Second Edition |Vernon L. Kellogg
It was the relentless, unfaltering tread of Russia's iron heel.

The North Pacific |Willis Boyd Allen
The words drilled themselves into his brain with relentless insistency.

Vain Fortune |George Moore
But it will afterwards appear that the beast is instigated to this relentless cruelty by another agent of the devil.

Notes On The Apocalypse |David Steele
Here then, was the weak spot in the armor of this relentless millionaire—his daughter.

The Vagrant Duke |George Gibbs

British Dictionary definitions for relentless

relentless

/ (rɪˈlɛntlɪs) /

adjective

(of an enemy, hostile attitude, etc) implacable; inflexible; inexorable

(of pace or intensity) sustained; unremitting

Derived forms of relentless

relentlessly, adverb relentlessness, noun