145 entries under pitiless topic. ×

6
apathetic(adjective, hard, tough, severe, cold)
6
dispassionate(adjective, cold, cruel, unfeeling, unsympathetic)
6
hard-boiled(adjective, hard, severe, sharp, rough)
6
rough(adjective, hard, severe, harsh, rude)
6
rude(adjective, hard, severe, sharp, nasty)
6
unflinching(adjective, mean, strong, severe, harsh)
6
unsparing(adjective, mean, severe, harsh, cruel)
5
bitter(adjective, hard, severe, evil, sharp)
5
cold-hearted(adjective, hard, tough, severe, cold)
5
hardened(adjective, hard, tough, severe, harsh)
5
malevolent(adjective, mean, evil, nasty, harsh)
5
steely(adjective, cold, cruel, resolute, unfeeling)
5
unemotional(adjective, hard, tough, severe, cold)
5
virulent(adjective, evil, nasty, harsh, vicious)
4
adamant(adjective, mean, hard, rough, harsh)
4
anesthetized(adjective, hard, tough, severe, cold)
4
coarse(adjective, severe, rude, cruel, vicious)
4
detached(adjective, cruel, unfeeling, unsympathetic)
4
flinty(adjective, evil, nasty, harsh, cruel)
4
nasty(adjective, mean, hard, severe, sharp)
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APASmart Define. (2016). ruthless thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/ruthless/thesaurus/synonyms
ChicagoSmart Define. 2016. "ruthless thesaurus" https://smartdefine.org/ruthless/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, ruthless thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/ruthless/thesaurus/synonyms>.
MLASmart Define. "ruthless thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/ruthless/thesaurus/synonyms>