6
pastoral(adjective, calm, quiet, cool, smooth)
6
philosophical(adjective, calm, quiet, gentle, relaxed)
6
reserved(adjective, calm, close, quiet, cool)
6
resting(adjective, calm, peaceful, tranquil, undisturbed)
6
silent(adjective, calm, quiet, smooth, gentle)
6
unclouded
6
unconcerned(adjective, feature, state, calm, quiet)
6
unemotional(adjective, calm, quiet, cool, moderate)
6
unhurried(adjective, feature, state, calm, quiet)
6
unmoved(adjective, calm, quiet, cool, moderate)
5
at ease(expression, adjective, calm, quiet, light)
5
complacent(adjective, calm, cool, secure, soft)
5
inactive(adjective, quiet, cool, smooth, mild)
5
indifferent(adjective, feature, state, calm, cool)
5
languid(adjective, feature, state, calm, quiet)
5
lucid(adjective, calm, quiet, reasonable, sensible)
5
motionless(adjective, calm, quiet, cool, smooth)
5
snug(adjective, calm, quiet, light, secure)
5
solemn(adjective, calm, quiet, cool, reasonable)
5
soothing(adjective, calm, quiet, cool, smooth)
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APASmart Define. (2015). serene thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/serene/thesaurus/synonyms
ChicagoSmart Define. 2015. "serene thesaurus" https://smartdefine.org/serene/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, serene thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/serene/thesaurus/synonyms>.
MLASmart Define. "serene thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/serene/thesaurus/synonyms>