36
cruel(adjective, person, mean, feeling, hard)
33
callous(adjective, mean, feeling, hard, cool)
31
ruthless(adjective, mean, feeling, hard, tough)
31
unfeeling(adjective, person, mean, feeling, hard)
27
pitiless(adjective, mean, feeling, hard, tough)
27
merciless(adjective, mean, feeling, hard, tough)
26
insensitive(adjective, person, mean, feeling, hard)
25
hard-hearted(adjective, person, mean, feeling, hard)
23
unsympathetic(adjective, person, mean, feeling, hard)
22
cold-blooded(adjective, person, mean, feeling, hard)
21
harsh(adjective, mean, feeling, hard, cool)
20
hard(adjective, person, mean, feeling, cool)
20
savage(adjective, mean, feeling, harsh, rude)
20
cold(adjective, person, mean, hard, cool)
19
brutal(adjective, mean, feeling, hard, tough)
19
unkind(adjective, person, mean, feeling, hard)
19
uncaring(adjective, person, mean, feeling, hard)
17
inhuman(adjective, animal, mean, feeling, hard)
17
hardhearted(adjective, person, mean, hard, severe)
16
indifferent(adjective, person, mean, hard, cool)
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APASmart Define. (2016). heartless thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/heartless/thesaurus/synonyms
ChicagoSmart Define. 2016. "heartless thesaurus" https://smartdefine.org/heartless/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, heartless thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/heartless/thesaurus/synonyms>.
MLASmart Define. "heartless thesaurus" 24 March 2016. Web. 20 September 2026. <https://smartdefine.org/heartless/thesaurus/synonyms>