2
resting(calm, peaceful, tranquil)
2
sane
2
secluded(adjective, shy, stable, peaceful, tranquil)
2
sensible(adjective, calm, relaxed, alert, tranquil)
2
sequestered(adjective, shy, stable, peaceful, tranquil)
2
soft(adjective, calm, quiet, reasonable, easy)
2
stagnant(adjective, calm, quiet, smooth, shy)
2
stationary(adjective, calm, quiet, smooth, tranquil)
2
still as death(expression, idiom, quiescence)
2
stilly
2
stoic(adjective, cool, blank, aloof, unemotional)
2
tame(calm, easy, relaxed, comfortable, moderation)
2
unchanged(adjective, calm, restrained, unconcerned, subdued)
2
unchanging(calm, smooth, steady, temperate, composed)
2
undeviating(adjective, quiet, soft, gentle, flat)
2
uniform(adjective, calm, quiet, smooth, soft)
2
uninterested(adjective, indifferent, unsympathetic, inattentive, nonchalant)
2
unstirring(adjective, calm, quiet, smooth, tranquil)
2
unvarying(adjective, calm, quiet, smooth, soft)
2
unwrinkled(adjective, smooth)
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APASmart Define. (2015). unruffled thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/unruffled/thesaurus/synonyms
ChicagoSmart Define. 2015. "unruffled thesaurus" https://smartdefine.org/unruffled/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, unruffled thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/unruffled/thesaurus/synonyms>.
MLASmart Define. "unruffled thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/unruffled/thesaurus/synonyms>