0
even(adjective, mild)
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fair(adjective, smooth, comfortable)
0
far-sighted(adjective, calm, reasonable, sensible, rational)
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flabbergasted(astonished, thunderstruck)
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gobsmacked(astonished, thunderstruck, flabbergasted)
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grave(adjective, calm, quiet, cool, sober)
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halcyon(adjective, quiet, cool, mild, still)
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harmonious(adjective, quiet, cool, still, peaceful)
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held down(expression, silenced, whist, disimpassioned)
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hushed(adjective, quiet, cool, mild, still)
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hushful(silenced, whist, disimpassioned)
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in order(expression, adjective, quiet, cool, still)
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in right mind(expression, idiom, calm, balanced)
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inactive(adjective, quiet, cool, still, peaceful)
0
inarticulate(adjective, silent, dazed, dumb, amazed)
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indifferent(adjective, calm, cool, philosophic)
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indomitable(adjective, calm, cool, indifferent, philosophic)
0
inobtrusive(silenced, whist, disimpassioned)
0
irenic(adjective, mild)
0
judicious(adjective, calm, reasonable, sensible, rational)
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APASmart Define. (2011). cool as cucumber thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/cool_as_cucumber/thesaurus/synonyms
ChicagoSmart Define. 2011. "cool as cucumber thesaurus" https://smartdefine.org/cool_as_cucumber/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2011, cool as cucumber thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/cool_as_cucumber/thesaurus/synonyms>.
MLASmart Define. "cool as cucumber thesaurus" 24 May 2011. Web. 28 September 2026. <https://smartdefine.org/cool_as_cucumber/thesaurus/synonyms>