7 entries under cruel topic. ×

6
unmerciful(adjective, mean, hard)
3
cold-blooded(adjective, kind, gentle, heartless)
0
implacable(adjective, merciless)
0
inclement(adjective, merciless)
0
inexorable(adjective, pitiless)
0
relentless(adjective, merciless)
0
sadistic(adjective, perverted)
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APASmart Define. (2016). merciful thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/merciful/thesaurus/antonyms
ChicagoSmart Define. 2016. "merciful thesaurus" https://smartdefine.org/merciful/thesaurus/antonyms (accessed September 28, 2026).
HarvardSmart Define 2016, merciful thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/merciful/thesaurus/antonyms>.
MLASmart Define. "merciful thesaurus" 24 March 2016. Web. 28 September 2026. <https://smartdefine.org/merciful/thesaurus/antonyms>