108 entries under subdued topic. ×

8
unexcited(adjective, calm, quiet, cool, reasonable)
7
laid-back(adjective, feature, state, calm, quiet)
7
passive(adjective, quiet, gentle, humble)
7
staid(adjective, calm, quiet, cool, reasonable)
6
reserved(adjective, calm, close, quiet, cool)
6
unconcerned(adjective, feature, state, calm, quiet)
6
unmoved(adjective, calm, quiet, cool, moderate)
5
indifferent(adjective, feature, state, calm, cool)
5
lucid(adjective, calm, quiet, reasonable, sensible)
5
solemn(adjective, calm, quiet, cool, reasonable)
4
aloof(adjective, calm, quiet, cool, moderate)
4
grave(adjective, calm, quiet, cool, reasonable)
4
lenient(adjective, calm, quiet, kind, soft)
4
serious(adjective, calm, cool, sensible, relaxed)
3
forbearing(adjective, calm, quiet, kind, smooth)
3
levelheaded(adjective, calm, quiet, cool, reasonable)
3
practical(adjective, calm, sensible, restrained, thoughtful)
3
rational(adjective, calm, quiet, reasonable, sensible)
3
realistic(adjective, calm, sensible, dark, restrained)
3
reasonable(adjective, calm, quiet, easy, sensible)
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APASmart Define. (2015). serene thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/serene/thesaurus/synonyms
ChicagoSmart Define. 2015. "serene thesaurus" https://smartdefine.org/serene/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, serene thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/serene/thesaurus/synonyms>.
MLASmart Define. "serene thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/serene/thesaurus/synonyms>