Synonyms|52Antonyms|1|Broader|0Narrower|0Related|1
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at ease(expression, adjective, calm, relaxed, tranquil)
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calm(adjective, relaxed, tranquil, easygoing, serene)
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calmed(adjective, calm, relaxed, tranquil, easygoing)
1
clearheaded(adjective, calm, relaxed, tranquil, easygoing)
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collected(adjective, calm, relaxed, tranquil, easygoing)
1
commonsensical(adjective, calm, relaxed, tranquil, easygoing)
1
cool(adjective, calm, relaxed, tranquil, easygoing)
1
cool as cucumber(expression, adjective, idiom, calm, relaxed)
1
disimpassioned(adjective, calm, relaxed, tranquil, easygoing)
1
dispassionate(adjective, calm, relaxed, tranquil, easygoing)
1
easy(adjective, calm, relaxed, tranquil, easygoing)
1
easygoing(adjective, calm, relaxed, tranquil, serene)
1
imperturbable(adjective, calm, relaxed, tranquil, easygoing)
1
levelheaded(adjective, calm, relaxed, tranquil, easygoing)
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nonchalant(adjective, calm, relaxed, tranquil, easygoing)
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not turn a hair(expression, adjective, idiom, calm, relaxed)
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placid(adjective, calm, relaxed, tranquil, easygoing)
1
poised(adjective, calm, relaxed, tranquil, easygoing)
1
possessed(adjective, calm, relaxed, tranquil, easygoing)
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quieted(adjective, calm, relaxed, tranquil, easygoing)
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APASmart Define. (1970). keeping a stiff upper lip thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/keeping_a_stiff_upper_lip/thesaurus/synonyms
ChicagoSmart Define. 1970. "keeping a stiff upper lip thesaurus" https://smartdefine.org/keeping_a_stiff_upper_lip/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 1970, keeping a stiff upper lip thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/keeping_a_stiff_upper_lip/thesaurus/synonyms>.
MLASmart Define. "keeping a stiff upper lip thesaurus" 1 January 1970. Web. 20 September 2026. <https://smartdefine.org/keeping_a_stiff_upper_lip/thesaurus/synonyms>