Synonyms of merciless
Examples of merciless in a Sentence
the merciless killing of innocent people
He has been merciless in his criticism of his opponent.
Recent Examples on the Web
The press was merciless for what seemed like forever.
—
Virginia Chamlee, PEOPLE, 20 Dec. 2025
Led by Varang, the Ash People are brutal and merciless, burning human ships and killing survivors without hesitation.
—Okla Jones, Essence, 19 Dec. 2025
My tongue could be sharp and merciless, but never with Samy.
—Literary Hub, 5 Dec. 2025
This summer, the region also saw temperatures reach unprecedented levels, with little respite from merciless heat and humidity, climatologist Maximiliano Herrera told CNN.
—Laura Sharman, CNN Money, 30 Nov. 2025
See All Example Sentences for merciless
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Virginia Chamlee, PEOPLE, 20 Dec. 2025
Led by Varang, the Ash People are brutal and merciless, burning human ships and killing survivors without hesitation.
—Okla Jones, Essence, 19 Dec. 2025
My tongue could be sharp and merciless, but never with Samy.
—Literary Hub, 5 Dec. 2025
This summer, the region also saw temperatures reach unprecedented levels, with little respite from merciless heat and humidity, climatologist Maximiliano Herrera told CNN.
—Laura Sharman, CNN Money, 30 Nov. 2025
See All Example Sentences for merciless
Cite this Entry
“Merciless.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/merciless. Accessed 21 Dec. 2025.
Copy CitationKids Definition
merciless
adjective
mer·ci·less
ˈmər-si-ləs 
: having no mercy : pitiless
merciless slaughter
mercilessly
adverb
mercilessness
noun
Love words? Need even more definitions?
Merriam-Webster unabridged
Share