3
relaxing(adjective, calm, secure, soft, pleasant)
3
restrained(adjective, calm, close, quiet, reasonable)
3
secure(adjective, calm, quiet, light, smooth)
3
stable(adjective, calm, quiet, smooth, soft)
3
stilly(adjective, calm)
3
stoic(adjective, cool, blank, aloof, moral)
3
submissive(adjective, calm, quiet, kind, smooth)
3
thoughtful(moral, logical, somber, solemn)
3
tolerant(adjective, feature, state, calm, quiet)
3
unmoving(adjective, tranquil, silent, motionless, immobile)
3
unshaken(adjective, firm, solid, stable, fixed)
2
affable(adjective, calm, kind, moderate, gentle)
2
amiable(adjective, calm, quiet, cool, kind)
2
bland(adjective, calm, quiet, cool, kind)
2
transparent
2
blissful(adjective, happy, welcome, joyful, satisfied)
2
breezy(adjective, feature, state, mild, relaxed)
2
buoyant(adjective, feature, state, trait, cheerful)
2
calming(adjective, relaxing, soothing, soporific)
2
careless(adjective, feature, state, calm, cool)
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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>