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
Iran’s attorney general has vowed to pursue merciless legal action against the latter, including the death penalty.
—
Hira Humayun, CNN Money, 12 Jan. 2026
With a merciless 56-22 thumping of Oregon in the Peach Bowl, the Hoosiers punched their ticket to their first national championship game appearance in program history.
—Jackson Thompson, FOXNews.com, 10 Jan. 2026
All the while, the president, his top advisers, and his public-affairs offices have pumped out rhetoric and imagery that celebrates the merciless, military-style pursuit of deportations.
—Caitlin Dickerson, The Atlantic, 9 Jan. 2026
The Knicks faithful can be merciless like that sometimes.
—Kristian Winfield, New York Daily News, 3 Jan. 2026
See All Example Sentences for merciless
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Hira Humayun, CNN Money, 12 Jan. 2026
With a merciless 56-22 thumping of Oregon in the Peach Bowl, the Hoosiers punched their ticket to their first national championship game appearance in program history.
—Jackson Thompson, FOXNews.com, 10 Jan. 2026
All the while, the president, his top advisers, and his public-affairs offices have pumped out rhetoric and imagery that celebrates the merciless, military-style pursuit of deportations.
—Caitlin Dickerson, The Atlantic, 9 Jan. 2026
The Knicks faithful can be merciless like that sometimes.
—Kristian Winfield, New York Daily News, 3 Jan. 2026
See All Example Sentences for merciless
Cite this Entry
“Merciless.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/merciless. Accessed 25 Jan. 2026.
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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