26 entries under sound topic. ×

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unflappable(adjective, calm, quiet, cool)
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commonsensical(adjective, calm, reasonable, sensible)
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dispassionate(adjective, calm, quiet, sensible)
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equable(adjective, calm, moderate, gentle)
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farsighted(adjective, calm, sensible)
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wise(adjective, calm, reasonable, sensible)
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APASmart Define. (2015). coolheaded thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/coolheaded/thesaurus/synonyms
ChicagoSmart Define. 2015. "coolheaded thesaurus" https://smartdefine.org/coolheaded/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, coolheaded thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/coolheaded/thesaurus/synonyms>.
MLASmart Define. "coolheaded thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/coolheaded/thesaurus/synonyms>