63 entries under unsympathetic topic. ×

10
hardhearted(adjective, mean, hard, cold, cruel)
10
obdurate(adjective, person, mean, hard, tough)
10
tough(adjective, hard, severe, rough, harsh)
8
cold(adjective, mean, hard, tough, severe)
8
stony-hearted(adjective, cold, cruel, unfeeling)
8
unfriendly(adjective, person, evil, negative, unfeeling)
6
indifferent(adjective, mean, hard, harsh, cold)
5
cold-hearted(adjective, hard, tough, severe, cold)
5
compassionless(adjective, mean, hard, cruel, unfeeling)
5
hard-boiled(adjective, person, hard, severe, rough)
5
uncaring(adjective, person, mean, hard, tough)
4
unmoved(adjective, cold, cruel, unfeeling)
3
apathetic(adjective, person, hard, tough, severe)
3
exacting(adjective, hard, tough, severe, rough)
3
hardened(adjective, person, hard, tough, severe)
3
thick-skinned(adjective, hard, tough, severe, cruel)
2
icy(adjective, hard, tough, severe, cold)
2
steely(adjective, cold, cruel, unfeeling)
1
anesthetized(adjective, hard, tough, severe, cold)
1
asleep(adjective, hard, tough, severe, cold)
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APASmart Define. (2016). merciless thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/merciless/thesaurus/synonyms
ChicagoSmart Define. 2016. "merciless thesaurus" https://smartdefine.org/merciless/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2016, merciless thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/merciless/thesaurus/synonyms>.
MLASmart Define. "merciless thesaurus" 31 March 2016. Web. 1 October 2026. <https://smartdefine.org/merciless/thesaurus/synonyms>