5
ruthless(adjective, hard, tough, severe, cold)
5
serene(adjective, calm, cool, relaxed, indifferent)
5
thick-skinned(adjective, hard, tough, severe, careless)
5
thoughtless(adjective, dull, sharp, rude, careless)
5
tough(adjective, mean, hard, cool, severe)
5
undemonstrative(adjective, calm, dull, cool, flat)
5
unexcited(adjective, calm, cool, relaxed, indifferent)
4
Laodicean(adjective, cold, dead, apathy, passive)
4
blunt(adjective, dull, impassive, unresponsive, insensitive)
4
cheerless(adjective, weary)
4
controlled(adjective, unexcitable)
4
droopy(adjective, dull, flat, low, sad)
4
drugged(adjective, lethargic, insensibility)
4
hebetudinous(adjective, dull, slow, heavy, sluggish)
4
icy(adjective, mean, hard, cool, tough)
4
materialistic(feature, person, character, trait)
4
offhand(adjective, calm, cool, relaxed, indifferent)
4
regardless(adjective, careless, indifferent, detached, distant)
4
sedentary(adjective, inert)
4
stagnant(adjective, dull, quiet, easy, flat)
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APASmart Define. (2016). apathetic thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/apathetic/thesaurus/synonyms
ChicagoSmart Define. 2016. "apathetic thesaurus" https://smartdefine.org/apathetic/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, apathetic thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/apathetic/thesaurus/synonyms>.
MLASmart Define. "apathetic thesaurus" 23 March 2016. Web. 21 September 2026. <https://smartdefine.org/apathetic/thesaurus/synonyms>