140 entries under detached topic. ×

7
inert(adjective, dull, weak, moving, easy)
7
quiet(adjective, calm, cool, relaxed, restrained)
7
unimpressionable(adjective, hard, careless, indifferent, cruel)
7
unruffled(adjective, calm, quiet, cool, moderate)
7
unsympathetic(adjective, hard, careless, indifferent, cruel)
6
immovable(adjective, cool, secure, steady)
6
impersonal(adjective, calm, cool, tough, temper)
5
distant(adjective, cool, indifferent, restrained)
5
hard-hearted(adjective, calm, indifferent, restrained)
5
inexpressive(adjective, dull, cool, dead)
5
lukewarm(adjective, calm, cool, temper, relaxed)
5
reticent(adjective, cool, restrained, blank)
5
smooth(adjective, calm, quiet, cool, relaxed)
5
undemonstrative(adjective, calm, cool, restrained)
4
coldhearted(adjective, dull, hard, slow)
4
easygoing(adjective, calm, dull, cool, relaxed)
4
icy(adjective, cool, temper, cold, negative)
4
moderate(adjective, calm, quiet, cool, gentle)
4
objective(adjective, calm, tough, indifferent, rational)
4
remote(adjective, cool, indifferent, restrained)
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APASmart Define. (2015). impassive thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/impassive/thesaurus/synonyms
ChicagoSmart Define. 2015. "impassive thesaurus" https://smartdefine.org/impassive/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, impassive thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/impassive/thesaurus/synonyms>.
MLASmart Define. "impassive thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/impassive/thesaurus/synonyms>