169 entries under pitiless topic. ×

6
bestial(adjective, severe, evil, nasty, harsh)
6
feral(adjective, mean, harsh, violent, cruel)
6
indifferent(adjective, mean, hard, harsh, cold)
6
monstrous(adjective, severe, evil, nasty, harsh)
6
unbending(adjective, hard, rough, harsh, cruel)
6
vengeful(adjective, mean, severe, evil, nasty)
6
violent(adjective, hard, rough, nasty, harsh)
5
adamant(adjective, person, mean, hard, rough)
5
cold-hearted(adjective, hard, tough, severe, cold)
5
compassionless(adjective, mean, hard, cruel, unfeeling)
5
demoniac(adjective, evil, nasty, harsh, violent)
5
flinty(adjective, evil, nasty, harsh, vicious)
5
hard-boiled(adjective, person, hard, severe, rough)
5
hellish(adjective, evil, nasty, harsh, violent)
5
rude(adjective, rough, violent, cruel, vicious)
5
uncaring(adjective, person, mean, hard, tough)
4
nasty(adjective, mean, evil, cruel, negative)
4
rigid(adjective, harsh, cruel, determined, fierce)
4
unappeasable(adjective, mean, harsh, cruel, determined)
4
uncalled-for(adjective, mean, cruel, senseless)
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APASmart Define. (2016). merciless thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/merciless/thesaurus/synonyms
ChicagoSmart Define. 2016. "merciless thesaurus" https://smartdefine.org/merciless/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, merciless thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/merciless/thesaurus/synonyms>.
MLASmart Define. "merciless thesaurus" 31 March 2016. Web. 29 September 2026. <https://smartdefine.org/merciless/thesaurus/synonyms>