86 entries under subdued topic. ×

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aloof(adjective, calm, quiet, cool, restrained)
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callous(adjective, calm, restrained, impassive)
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casual(adjective, calm, restrained, impassive)
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cold fish(expression, adjective, calm, restrained)
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easy-going(adjective, calm, restrained, impassive)
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hard-hearted(adjective, calm, restrained, impassive)
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hardboiled(adjective, quiet, restrained, disciplined)
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impassive(adjective, calm, quiet, cool, restrained)
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impervious(adjective, calm, restrained, impassive)
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indifferent(adjective, calm, reasonable, sensible, restrained)
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lukewarm(adjective, calm, restrained, impassive)
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not influenced(expression, adjective, calm, restrained)
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practical(adjective, calm, sensible, restrained, thoughtful)
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proof(adjective, calm, restrained, impassive)
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realistic(adjective, calm, sensible, restrained, thoughtful)
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tepid(adjective, calm, restrained, impassive)
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thick-skinned(adjective, calm, restrained, impassive)
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unaltered(adjective, calm, restrained, impassive)
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unchanged(adjective, calm, restrained, impassive)
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unconcerned(adjective, calm, quiet, cool, restrained)
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APASmart Define. (2015). low-key thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/low-key/thesaurus/synonyms
ChicagoSmart Define. 2015. "low-key thesaurus" https://smartdefine.org/low-key/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, low-key thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/low-key/thesaurus/synonyms>.
MLASmart Define. "low-key thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/low-key/thesaurus/synonyms>