175 entries under unemotional topic. ×

9
incurious(adjective, calm, hard, cool, relaxed)
9
lethargic(adjective, calm, dull, weak, easy)
9
reserved(adjective, calm, cool, indifferent, restrained)
8
collected(adjective, calm, quiet, cool, moderate)
8
heartless(adjective, hard, cool, careless, indifferent)
8
matter-of-fact(adjective, calm, dull, cool, simple)
8
neutral(adjective, calm, quiet, cool, moderate)
8
spiritless(adjective, dull, hard, cool, weak)
8
unexcitable(adjective, calm, dull, quiet, cool)
7
insusceptible(adjective, hard, cool, affect, dead)
7
languid(adjective, dull, weak, easy, slow)
7
passive(adjective, calm, dull, indifferent, still)
7
quiet(adjective, calm, cool, relaxed, restrained)
7
staid(adjective, calm, indifferent, restrained, aloof)
7
taciturn(adjective, cool, blank, aloof)
7
unruffled(adjective, calm, quiet, cool, moderate)
6
dull(adjective, calm, tough, slow, relaxed)
6
immovable(adjective, cool, secure, steady, detached)
6
impersonal(adjective, calm, cool, tough, temper)
6
inscrutable(adjective, dull, quiet, cool, moderate)
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APASmart Define. (2015). impassive thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/impassive/thesaurus/synonyms
ChicagoSmart Define. 2015. "impassive thesaurus" https://smartdefine.org/impassive/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, impassive thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/impassive/thesaurus/synonyms>.
MLASmart Define. "impassive thesaurus" 14 April 2015. Web. 1 October 2026. <https://smartdefine.org/impassive/thesaurus/synonyms>