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Definitions

mercilessly

[mur-si-lis-lee] / ˈmɜr sɪ lɪs li /
ADVERB
brutally
Synonyms
STRONGEST
ferociously fiercely relentlessly ruthlessly savagely viciously
WEAK
atrociously barbarically barbarously brutishly callously demoniacally diabolically ferally hardheartedly heartlessly in cold blood inexorably inhumanely inhumanly meanly murderously pitilessly remorselessly something fierce something terrible unkindly unrelentingly
Antonyms
WEAK
gently humanely kindly nicely

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.

It has been a March Madness of the haves mercilessly thumping the have-nots.

From The Wall Street Journal • Mar. 23, 2026

The private equity model has struck again—this time, even more quickly and mercilessly than usual.

From Slate • Jan. 23, 2026

They previously had their romance thrown into the spotlight during the NFL Honors, when they were mercilessly roasted by rapper Snoop Dogg over their 48-year age gap.

From MarketWatch • Dec. 3, 2025

The war experience was now being mercilessly satirised.

From BBC • Nov. 10, 2025

I tightened my grip around the letter, crumpling it mercilessly in my hand before realizing what I was doing and releasing it.

From "Glitch" by Laura Martin

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.