82 entries under merciless topic. ×

2
unfeeling(adjective, mean, tough, evil, nasty)
2
unmerciful(adjective, mean, harsh, cruel, vicious)
1
brutal(adjective, mean, tough, evil, nasty)
1
cold(adjective, mean, tough, nasty, harsh)
1
degenerate(adjective, evil, nasty, harsh, violent)
1
demoniac(adjective, evil, nasty, harsh, vicious)
1
depraved(adjective, bad, evil, nasty, harsh)
1
excruciating(adjective, evil, nasty, harsh, vicious)
1
flinty(adjective, evil, nasty, harsh, vicious)
1
grim(adjective, mean, tough, harsh, cruel)
1
hard-hearted(adjective, mean, evil, nasty, harsh)
1
hellish(adjective, evil, nasty, harsh, vicious)
1
inexorable(adjective, mean, evil, nasty, harsh)
1
inhumane(adjective, evil, nasty, harsh, vicious)
1
ironfisted(adjective, mean, harsh, cruel, vicious)
1
monstrous(adjective, evil, nasty, harsh, violent)
1
obdurate(adjective, mean, tough, harsh, cruel)
1
painful(adjective, tough, evil, nasty, harsh)
1
pernicious(adjective, mean, bad, evil, nasty)
1
poignant(adjective, evil, nasty, harsh, vicious)
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APASmart Define. (2015). rancorous thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/rancorous/thesaurus/synonyms
ChicagoSmart Define. 2015. "rancorous thesaurus" https://smartdefine.org/rancorous/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, rancorous thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/rancorous/thesaurus/synonyms>.
MLASmart Define. "rancorous thesaurus" 17 July 2015. Web. 30 September 2026. <https://smartdefine.org/rancorous/thesaurus/synonyms>