Synonyms|176Antonyms|18|Broader|1Narrower|0Related|27
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soberer
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solemn
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solid
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soothing(adjective, quiet, cool, still, peaceful)
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stable
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stayed
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stormless(adjective, quiet, cool, still, peaceful)
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thoughtful
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unagitated
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under control
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unflurried(tranquil, unperturbed)
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unsusceptible
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waveless(adjective, quiet, cool, still, peaceful)
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well-balanced(wise, shrewd, visionary, prophetic)
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windless(adjective, quiet, cool, still, peaceful)
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wise(shrewd, visionary, prophetic)
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APASmart Define. (2013). cool-headed thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/cool-headed/thesaurus/synonyms
ChicagoSmart Define. 2013. "cool-headed thesaurus" https://smartdefine.org/cool-headed/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2013, cool-headed thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/cool-headed/thesaurus/synonyms>.
MLASmart Define. "cool-headed thesaurus" 17 June 2013. Web. 23 September 2026. <https://smartdefine.org/cool-headed/thesaurus/synonyms>