112 entries under heartless topic. ×

5
implacable(adjective, mean, hard, harsh, cold)
5
inexorable(adjective, mean, hard, harsh, cold)
5
insensible(adjective, mean, hard, tough, severe)
4
cold-hearted(adjective, hard, tough, severe, cruel)
4
grim(adjective, mean, harsh, cruel, deep)
4
inhuman(adjective, mean, hard, tough, severe)
4
inured(adjective, hard, careless, indifferent, cruel)
4
mean(adjective, person, hard, cool, harsh)
4
unkind(adjective, person, mean, hard, cool)
3
anesthetized(adjective, hard, tough, severe, cruel)
3
coldhearted(adjective, mean, hard, harsh, cold)
3
exacting(adjective, hard, tough, severe, cruel)
3
numb(adjective, hard, tough, severe, cruel)
3
savage(adjective, mean, hard, harsh, cold)
2
benumbed(adjective, hard, tough, severe, firm)
2
bloodless(adjective, hard, indifferent, unkind, unresponsive)
2
case-hardened(adjective, hard, careless, indifferent, cruel)
2
cutthroat(adjective, mean, hard, severe, harsh)
2
dog-eat-dog(adjective, mean, hard, severe, harsh)
2
hard as nails(expression, adjective, idiom, set, strong)
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APASmart Define. (2016). stony thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/stony/thesaurus/synonyms
ChicagoSmart Define. 2016. "stony thesaurus" https://smartdefine.org/stony/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, stony thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/stony/thesaurus/synonyms>.
MLASmart Define. "stony thesaurus" 24 March 2016. Web. 28 September 2026. <https://smartdefine.org/stony/thesaurus/synonyms>