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Definitions

relentless

[ri-lent-lis] / rɪˈlɛnt lɪs /
ADJECTIVE
cruel, merciless
Synonyms
STRONGEST
determined dogged ferocious fierce harsh implacable inexorable rigorous ruthless single-minded uncompromising unforgiving unrelenting unstoppable unyielding
WEAK
adamant bound bound and determined dead set on go for broke grim hang in hang-tough hard inflexible inhuman mortal obdurate pitiless remorseless rigid stiff stop-at-nothing strict stringent unappeasable unbending undeviating unflinching vindictive
Antonyms
STRONGEST
compassionate easy flexible gentle irresolute kind lenient merciful mild nice nonviolent peaceful remorseful sympathetic tame tender yielding
WEAK
ending intermittent stopping understanding
ADJECTIVE
continuous, neverending
Synonyms
STRONGEST
incessant nonstop persistent punishing sustained tenacious unflagging unrelenting unremitting unstoppable
WEAK
pertinacious unabated unbroken unfaltering unrelieved
Antonyms
STRONGEST
intermittent relenting surrendering yielding
WEAK
ending kind merciful stopping sympathetic understanding

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.

Compared to relentless real-life market competition, online games are more like, well, games.

From The Wall Street Journal • Apr. 15, 2026

Yet the pressure has been relentless, the results have been inconsistent, and the season now looks set to end without major silverware - a repeat of 2024-25, when only the Uefa Super Cup was secured.

From BBC • Apr. 15, 2026

That is why, in his eighth decade, McKechnie remains a master of the relentless world he inhabits.

From BBC • Apr. 14, 2026

Kaczmarek said that Cranston was relentless: “He would tell me, ‘I really want to get us back together again.’

From Los Angeles Times • Apr. 10, 2026

Coming down the road, relentless, like a joke that ain’t ever gonna be funny.

From "The Knife of Never Letting Go" by Patrick Ness

Vocabulary lists containing relentless

The Giver

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A Long Walk to Water

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Power Suffix: -less

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