68 entries under impassive topic. ×

10
impassible(adjective, quiet, bad, hard, temper)
10
insensate(noun, adjective, bad, hard, tough)
10
obdurate(adjective, mean, hard, cool, tough)
10
oblivious(adjective, dull, careless, cold, indifferent)
10
unmoved(adjective, mean, hard, cool, temper)
9
dispassionate(adjective, cold, indifferent, detached, unfeeling)
9
emotionless(adjective, dull, bad, cold, indifferent)
8
blunt(adjective, dull, sharp, careless, thoughtless)
7
unaffected(adjective, hard, temper, careless, cold)
6
passive(adjective, dull, detached, unfeeling)
5
chill(adjective, bad, cold, detached, aloof)
5
coldhearted(adjective, person, mean, hard, cold)
5
slow-witted(dull, slow, stupid, unresponsive)
5
stoic(adjective, dull, cold, indifferent)
4
doltish(dull, slow, stupid, vulgar, thoughtless)
4
listless(adjective, quiet, sharp, temper, rude)
4
objective(adjective, detached, unresponsive, dispassionate)
4
passionless(adjective, dull, quiet, flat, heavy)
4
phlegmatic(adjective, dull, indifferent, detached, unfeeling)
4
unimpressionable(adjective, hard, careless, indifferent, cruel)
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APASmart Define. (2016). insensitive thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/insensitive/thesaurus/synonyms
ChicagoSmart Define. 2016. "insensitive thesaurus" https://smartdefine.org/insensitive/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, insensitive thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/insensitive/thesaurus/synonyms>.
MLASmart Define. "insensitive thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/insensitive/thesaurus/synonyms>