Thesaurus
Synonyms & Antonyms of merciless
having or showing a lack of sympathy or tender feelings
- she is a merciless competitor at board games of any kind
Synonyms for merciless
- affectless,
- callous,
- case-hardened,
- cold-blooded,
- compassionless,
- desensitized,
- hard,
- hard-boiled,
- hard-hearted,
- heartless,
- indurate,
- inhuman,
- inhumane,
- insensate,
- insensitive,
- ironhearted,
- obdurate,
- pachydermatous,
- pitiless,
- remorseless,
- ruthless,
- slash-and-burn,
- soulless,
- stony
- (also stoney),
- stonyhearted,
- take-no-prisoners,
- thick-skinned,
- uncharitable,
- unfeeling,
- unmerciful,
- unsparing,
- unsympathetic
Words Related to merciless
- grim,
- hard-bitten,
- harsh,
- heavy-handed,
- ironfisted,
- ironhanded,
- jackbooted,
- knock-down, drag-out
- (or knock-down-and-drag-out),
- oppressive,
- rough,
- rough-and-tumble,
- severe,
- sledgehammer,
- stern,
- tough,
- ungentle
Near Antonyms for merciless
Antonyms for merciless
Learn More About merciless
From the Editors at Merriam-Webster
Sometimes '-less' Is More
Sometimes '-less' Is More
'Ruthless,' 'feckless,' and more words ending in '-less'
Cite this Entry
“Merciless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/merciless. Accessed 14 Aug. 2022.
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Time Traveler for merciless
The first known use of merciless was in the 14th century
See more words from the same century