150 entries under indifferent topic. ×

1
deaf(adjective, unsympathetic, inattentive, uninterested)
1
diffident(adjective, detached, distant, apathetic)
1
disinterested(adjective, mean, hard, cool, unpleasant)
1
draggy(adjective, unconcerned, uncaring, passive)
1
equitable(adjective, detached, distant, apathetic)
1
feelingless(adjective, hard, tough, severe)
1
flat(adjective, dull, quiet, heavy)
1
halfhearted(adjective, mean, hard, cool, unpleasant)
1
haughty(adjective, detached, distant, apathetic)
1
heedless(adjective, detached, distant, apathetic)
1
highbrow(adjective, detached, distant, apathetic)
1
impartial(adjective, detached, distant, apathetic)
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incurious(adjective, apathetic, unfeeling, unconcerned)
1
laid-back(adjective, calm, restrained, detached)
1
languid(adjective, dull, quiet, flat, heavy)
1
lethargic(adjective, unfeeling, unconcerned, numb)
1
listless(adjective, dull, quiet, flat, heavy)
1
moony(adjective, unconcerned, uncaring, passive)
1
neutral(adjective, detached, distant, apathetic)
1
nonpartisan(adjective, detached, distant, apathetic)
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APASmart Define. (2016). callous thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/callous/thesaurus/synonyms
ChicagoSmart Define. 2016. "callous thesaurus" https://smartdefine.org/callous/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, callous thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/callous/thesaurus/synonyms>.
MLASmart Define. "callous thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/callous/thesaurus/synonyms>