Synonyms|248Antonyms|89|Broader|5Narrower|0Related|187
1
uncontrite(adjective, hard, tough, harsh, cruel)
1
unflinching(adjective, mean, severe, harsh, cruel)
1
unfriendly(adjective, coldhearted)
1
ungracious
1
unkindly(adjective, coldhearted)
1
unlikable(adjective, coldhearted)
1
unlikeable(adjective, coldhearted)
1
unmoved
1
unpitiful
1
unreceptive(adjective, coldhearted)
1
unregenerate(adjective, hard, tough, harsh, cruel)
1
unremitting(adjective, hard, tough, harsh, cruel)
1
unremorseful
1
unrepenting(adjective, hard, tough, harsh, cruel)
1
unrestrained(adjective, violent, cruel, vicious, fierce)
1
unstoppable
1
unsympathising(adjective, coldhearted)
1
untamed(adjective, violent, cruel, vicious, fierce)
1
vehement(adjective, violent, cruel, vicious, fierce)
1
voracious(adjective, violent, cruel, vicious, fierce)
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ChicagoSmart Define. 2016. "unmerciful thesaurus" https://smartdefine.org/unmerciful/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, unmerciful thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/unmerciful/thesaurus/synonyms>.
MLASmart Define. "unmerciful thesaurus" 31 March 2016. Web. 25 September 2026. <https://smartdefine.org/unmerciful/thesaurus/synonyms>