87 entries under heartless topic. ×

11
feral(adjective, adverb, mean, strong, kind)
11
unsparing(adjective, mean, strong, hard, tough)
10
unpitying(adjective, mean, hard, cool, severe)
9
cold-hearted(adjective, person, hard, tough, severe)
9
obdurate(adjective, mean, strong, hard, cool)
9
rancorous(adjective, characteristic, mean, nasty, harsh)
9
stiff(adjective, hard, severe, rough, harsh)
9
stony-hearted(adjective, cold, unfeeling, unsympathetic, pitiless)
9
uncaring(adjective, person, mean, hard, cool)
9
uncordial(adjective, person, hard, tough, severe)
8
cutthroat(adjective, mean, strong, severe, harsh)
8
inflexible(adjective, strong, hard, tough, severe)
8
stony(adjective, mean, hard, cool, tough)
7
revengeful(adjective, characteristic, mean, nasty, harsh)
6
icy(adjective, person, mean, hard, cool)
6
mortal(adjective, mean, severe, harsh, awful)
6
unbending(adjective, strong, hard, tough, severe)
6
uncompromising(adjective, hard, severe, rough, harsh)
6
unconcerned(adjective, mean, hard, cool, unpleasant)
5
indifferent(adjective, person, mean, hard, cool)
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APASmart Define. (2016). cruel thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/cruel/thesaurus/synonyms
ChicagoSmart Define. 2016. "cruel thesaurus" https://smartdefine.org/cruel/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, cruel thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/cruel/thesaurus/synonyms>.
MLASmart Define. "cruel thesaurus" 24 March 2016. Web. 30 September 2026. <https://smartdefine.org/cruel/thesaurus/synonyms>