126 entries under still topic. ×

12
tranquil(adjective, calm, quiet, cool, relaxed)
11
disinterested(adjective, calm, quiet, cool, moderate)
11
peaceful(adjective, quiet, cool, tranquil)
11
unflappable(adjective, calm, quiet, cool, moderate)
9
lackadaisical(adjective, calm, dull, cool, weak)
9
lethargic(adjective, calm, dull, weak, easy)
8
collected(adjective, calm, quiet, cool, moderate)
8
neutral(adjective, calm, quiet, cool, moderate)
8
numb(adjective, aloof, unfeeling, senseless)
8
spiritless(adjective, dull, hard, cool, weak)
8
unexcitable(adjective, calm, dull, quiet, cool)
7
inert(adjective, dull, weak, moving, easy)
7
languid(adjective, dull, weak, easy, slow)
7
passive(adjective, calm, dull, indifferent)
7
quiet(adjective, calm, cool, relaxed, restrained)
7
unruffled(adjective, calm, quiet, cool, moderate)
6
dull(adjective, calm, tough, slow, relaxed)
6
inscrutable(adjective, dull, quiet, cool, moderate)
6
quiescent(adjective, quiet, cool, secure)
6
restful(adjective, quiet, cool, moderate, gentle)
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APASmart Define. (2015). impassive thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/impassive/thesaurus/synonyms
ChicagoSmart Define. 2015. "impassive thesaurus" https://smartdefine.org/impassive/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, impassive thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/impassive/thesaurus/synonyms>.
MLASmart Define. "impassive thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/impassive/thesaurus/synonyms>