8
cutthroat(adjective, mean, hard, severe, care)
8
grim(adjective, animal, mean, hard, tough)
8
hardhearted(adjective, mean, hard, severe, care)
8
inflexible(adjective, severe, harsh, cruel, determined)
8
mean(verb, adjective, animal, hard, severe)
7
bestial(adjective, animal, mean, severe, nasty)
7
fell(adjective, animal, mean, harsh, violent)
7
feral(adjective, mean, harsh, violent, cruel)
7
indifferent(adjective, hard, care, cold, unfeeling)
7
strict(adjective, severe, harsh, cruel, determined)
7
tyrannical(adjective, hard, tough, nasty, harsh)
7
unyielding(adjective, mean, hard, tough, severe)
6
rigid(adjective, severe, harsh, cruel, determined)
6
sadistic(adjective, person, mean, nasty, harsh)
6
selfish
6
stern(adjective, mean, hard, severe, sharp)
6
uncompromising(adjective, severe, harsh, cruel, determined)
6
unsparing(adjective, person, mean, severe, harsh)
5
atrocious(adjective, nasty, harsh, violent, cruel)
5
austere(adjective, hard, severe, sharp, nasty)
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APASmart Define. (2016). pitiless thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/pitiless/thesaurus/synonyms
ChicagoSmart Define. 2016. "pitiless thesaurus" https://smartdefine.org/pitiless/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, pitiless thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/pitiless/thesaurus/synonyms>.
MLASmart Define. "pitiless thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/pitiless/thesaurus/synonyms>