148 entries under serene topic. ×

3
aloof(adjective, calm, close, quiet, cool)
3
at peace(expression, adjective, calm, quiet, cool)
3
contented(adjective, calm, quiet, relaxed, shy)
3
docile(adjective, calm, quiet, cool, kind)
3
level(adjective, calm, quiet, smooth, friendly)
3
neutral(adjective, calm, quiet, cool, smooth)
3
stoical(adjective, calm, cool, smooth, still)
2
passionless(adjective, calm, dull, quiet, cool)
2
possessed(adjective, calm, quiet, easy, relaxed)
2
serious(adjective, calm, cool, relaxed, tranquil)
2
unexcited(adjective, calm, quiet, cool, moderate)
2
at ease(expression, adjective, calm, quiet, easy)
2
harmonious(adjective, calm, quiet, cool, smooth)
2
indifferent(adjective, calm, dull, quiet, cool)
2
inexcitable(adjective, cool, blank, aloof, unemotional)
2
inscrutable(adjective, quiet, cool, moderate, gentle)
2
laid-back(adjective, calm, quiet, cool, moderate)
2
nonbelligerent(calm, quiet, friendly, easygoing, compliant)
2
poker-faced(adjective, cool, blank, aloof, unemotional)
2
repressed(adjective, calm, relaxed, tranquil, easygoing)
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APASmart Define. (2016). placid thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/placid/thesaurus/synonyms
ChicagoSmart Define. 2016. "placid thesaurus" https://smartdefine.org/placid/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, placid thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/placid/thesaurus/synonyms>.
MLASmart Define. "placid thesaurus" 29 February 2016. Web. 29 September 2026. <https://smartdefine.org/placid/thesaurus/synonyms>