72 entries under impassive topic. ×

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tepid(adjective, calm, restrained, subdued)
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thick-skinned(adjective, calm, restrained, subdued)
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unaltered(adjective, calm, restrained, subdued)
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unchanged(adjective, calm, restrained, subdued)
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unconcerned(adjective, calm, restrained, subdued)
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unenthusiastic(adjective, calm, restrained, subdued)
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unimpressed(adjective, calm, restrained, subdued)
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uninfluenced(adjective, calm, restrained, subdued)
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unmoved(adjective, calm, restrained, subdued)
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unresponsive(adjective, calm, restrained, subdued)
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unstirred(adjective, calm, restrained, subdued)
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untouched(adjective, calm, restrained, subdued)
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APASmart Define. (2015). clear-headed thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/clear-headed/thesaurus/synonyms
ChicagoSmart Define. 2015. "clear-headed thesaurus" https://smartdefine.org/clear-headed/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, clear-headed thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/clear-headed/thesaurus/synonyms>.
MLASmart Define. "clear-headed thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/clear-headed/thesaurus/synonyms>