93 entries under pitiless topic. ×

13
merciless(adjective, appearance, mean, hard, tough)
10
unmerciful(adjective, mean, hard, tough, severe)
8
savage(adjective, animal, mean, hard, tough)
7
inhuman(adjective, animal, mean, hard, tough)
6
mortal(adjective, mean, severe, harsh, cruel)
6
unflinching(adjective, mean, severe, harsh, cruel)
6
unmoved(adjective, intolerant)
6
unsympathetic(adjective, animal, mean, hard, tough)
5
stony(adjective, mean, hard, harsh, cruel)
4
barbarous(adjective, animal, appearance, mean, hard)
4
bitter(adjective, strong, hard, tough, severe)
4
brutal(adjective, mean, hard, tough, severe)
4
callous(adjective, mean, hard, tough, severe)
4
flinty(adjective, close, strong, hard, tough)
4
hard-hearted(adjective, mean, hard, tough, evil)
4
heartless(adjective, mean, severe, evil, nasty)
4
uncompassionate(adjective, animal, mean, hard, tough)
4
unfeeling(adjective, animal, mean, hard, tough)
4
unsparing(adjective, mean, strong, hard, tough)
3
brutish(adjective, evil, nasty, harsh, violent)
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APASmart Define. (2015). unrelenting thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unrelenting/thesaurus/synonyms
ChicagoSmart Define. 2015. "unrelenting thesaurus" https://smartdefine.org/unrelenting/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, unrelenting thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unrelenting/thesaurus/synonyms>.
MLASmart Define. "unrelenting thesaurus" 3 August 2015. Web. 27 September 2026. <https://smartdefine.org/unrelenting/thesaurus/synonyms>