100 entries under pitiless topic. ×

10
spiteful(adjective, person, mean, evil, nasty)
10
uncompassionate(adjective, animal, mean, hard, evil)
10
vindictive(adjective, person, hard, tough, severe)
9
hateful(adjective, animal, person, mean, evil)
9
insensitive(adjective, mean, hard, tough, harsh)
9
unmerciful(adjective, mean, hard, tough, severe)
8
grim(adjective, animal, person, mean, hard)
8
sadistic(adjective, person, mean, evil, nasty)
8
unforgiving(adjective, person, mean, hard, tough)
8
vicious(adjective, evil, nasty, harsh, rude)
7
bloodthirsty(adjective, severe, evil, nasty, harsh)
7
callous(adjective, mean, hard, severe, evil)
6
ferocious(adjective, animal, mean, evil, nasty)
6
hellish(adjective, evil, nasty, harsh, violent)
6
remorseless(adjective, animal, mean, hard, severe)
6
severe(adjective, person, mean, harsh, cruel)
5
hard-hearted(adjective, mean, hard, tough, evil)
5
atrocious(adjective, evil, nasty, harsh, rude)
5
beastly(adjective, rough, violent, cruel, vicious)
5
bestial(adjective, animal, mean, severe, evil)
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APASmart Define. (2016). inhumane thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/inhumane/thesaurus/synonyms
ChicagoSmart Define. 2016. "inhumane thesaurus" https://smartdefine.org/inhumane/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, inhumane thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/inhumane/thesaurus/synonyms>.
MLASmart Define. "inhumane thesaurus" 31 March 2016. Web. 25 September 2026. <https://smartdefine.org/inhumane/thesaurus/synonyms>