2
masculine
2
mean(verb, adjective, hard)
2
narcissistic
2
remorseless
2
savage
2
unsparing(adjective, generous)
2
unsympathetic(adjective, mean, hard, kind, sensitive)
2
vengeful
2
vindictive
1
severe(adjective, mean, hard)
1
unfortunate
1
unkind(adjective, mean, hard)
1
austere
1
baneful
1
bitter
1
bloody
1
bowelless
1
brutish(adjective, calm, careful, apathetic, compassionate)
1
case-hardened(kind, sympathetic)
1
coldblooded(kind, gentle)
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APASmart Define. (2016). merciful thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/merciful/thesaurus/antonyms
ChicagoSmart Define. 2016. "merciful thesaurus" https://smartdefine.org/merciful/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2016, merciful thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/merciful/thesaurus/antonyms>.
MLASmart Define. "merciful thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/merciful/thesaurus/antonyms>