146 entries under serene topic. ×

4
level(adjective, calm, quiet, smooth, friendly)
4
pacific(adjective, calm, quiet, cool, reasonable)
4
possessed(adjective, calm, quiet, easy, relaxed)
4
restful(adjective, calm, quiet, cool, smooth)
4
self-assured(adjective, calm, solid, relaxed, certain)
4
serious(adjective, calm, cool, dark, relaxed)
4
smooth(adjective, calm, quiet, cool, easy)
4
solemn(adjective, calm, quiet, cool, reasonable)
4
untroubled(adjective, calm, quiet, cool, smooth)
3
apathetic(adjective, calm, cool, relaxed, casual)
3
easeful(calm, quiet, friendly)
3
grave(adjective, calm, quiet, cool, reasonable)
3
mild(adjective, calm, quiet, cool, reasonable)
3
soft(adjective, calm, quiet, reasonable, moderate)
3
steady(adjective, calm, quiet, cool, smooth)
2
earnest(adjective, calm, quiet, cool, reasonable)
2
laid-back(adjective, calm, quiet, cool, moderate)
2
neutral(adjective, calm, quiet, cool, smooth)
2
phlegmatic(adjective, calm, quiet, cool, relaxed)
2
poker-faced(adjective, calm, cool, indifferent, detached)
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APASmart Define. (2015). collected thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/collected/thesaurus/synonyms
ChicagoSmart Define. 2015. "collected thesaurus" https://smartdefine.org/collected/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, collected thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/collected/thesaurus/synonyms>.
MLASmart Define. "collected thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/collected/thesaurus/synonyms>