96 entries under apathetic topic. ×

10
unemotional(adjective, mean, feeling, hard, cool)
9
detached(adjective, person, hard, cool, indifferent)
9
frigid(adjective, person, mean, hard, cool)
8
cool(adjective, mean, hard, unpleasant, cold)
8
dispassionate(adjective, cool, cold, indifferent, cruel)
8
unconcerned(adjective, mean, hard, cool, unpleasant)
7
impassive(adjective, hard, cool, careless, indifferent)
7
mean(verb, adjective, bad, hard, cool)
7
passionless(adjective, cool, indifferent, detached, blank)
7
unpitying(adjective, mean, hard, cool, severe)
6
icy(adjective, mean, hard, cool, tough)
6
soulless(adjective, hard, careless, indifferent, cruel)
6
thick-skinned(adjective, mean, feeling, hard, cool)
6
unresponsive(adjective, mean, hard, cool, unpleasant)
5
insensible(adjective, hard, cool, tough, severe)
5
nonchalant(adjective, cool, indifferent, detached, blank)
5
objective(adjective, indifferent, detached, distant)
5
spiritless(adjective, hard, cool, careless, indifferent)
3
inflexible(adjective, mean, hard, harsh, careless)
2
case-hardened(adjective, hard, careless, indifferent, cruel)
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APASmart Define. (2016). heartless thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/heartless/thesaurus/synonyms
ChicagoSmart Define. 2016. "heartless thesaurus" https://smartdefine.org/heartless/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, heartless thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/heartless/thesaurus/synonyms>.
MLASmart Define. "heartless thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/heartless/thesaurus/synonyms>