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
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
Despite the Hulu show earning merciless reviews, Close doesn’t blame Kimmy’s (lack of) talent.
—Jason P. Frank, Vulture, 20 Nov. 2025
What isn’t, based on early returns, is the merciless, ruthless approach toward inferior competition.
—Mark Zeigler, San Diego Union-Tribune, 8 Nov. 2025
See All Example Sentences for merciless
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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
Despite the Hulu show earning merciless reviews, Close doesn’t blame Kimmy’s (lack of) talent.
—Jason P. Frank, Vulture, 20 Nov. 2025
What isn’t, based on early returns, is the merciless, ruthless approach toward inferior competition.
—Mark Zeigler, San Diego Union-Tribune, 8 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 8 Dec. 2025.
Copy CitationKids Definition
merciless
adjective
mer·ci·less
ˈmər-si-ləs 
: having no mercy : pitiless
merciless slaughter
mercilessly
adverb
mercilessness
noun
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