383 entries under calm topic. ×

2
methodical(smooth, composed, unflappable)
2
nonbelligerent(quiet, friendly, easygoing, compliant)
2
nonviolent(quiet, friendly, easygoing, compliant)
2
obliging(adjective, kind, smooth, soft)
2
plain(adjective, quiet, light, simple)
2
pleasant(adjective, quiet, light, secure)
2
poker-faced(adjective, cool, detached, blank)
2
resigned(adjective, quiet, gentle, restrained)
2
sedative(easy, relaxed, comfortable, contented)
2
self-assured(adjective, happy, relaxed, tranquil)
2
somber(adjective, quiet, cool, reasonable)
2
subdued(adjective, quiet, kind, smooth)
2
tractable(adjective, moderate, tender, informal)
2
unaffected(adjective, cool, unflappable)
2
unassuming(adjective, quiet, kind, smooth)
2
uncomplaining(adjective, quiet, gentle, restrained)
2
unflustered(adjective, cool, steady, detached)
1
agreeable(adjective, quiet, secure, smooth)
1
amicable(adjective, quiet, cool, smooth)
1
assured(adjective, quiet, cool, relaxed)
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APASmart Define. (2015). serene thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/serene/thesaurus/synonyms
ChicagoSmart Define. 2015. "serene thesaurus" https://smartdefine.org/serene/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, serene thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/serene/thesaurus/synonyms>.
MLASmart Define. "serene thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/serene/thesaurus/synonyms>