86 entries under unruffled topic. ×

3
relaxed(adjective, calm, quiet, cool, moderate)
3
sensible(adjective, calm, firm, solid, relaxed)
3
serious(adjective, calm, cool, sensible, dark)
3
solemn(adjective, calm, cool, sensible, dark)
3
sound(adjective, calm, firm, sensible, solid)
3
together(adjective, calm, quiet, relaxed, casual)
3
unimpassioned(adjective, calm, sensible, dark, restrained)
2
pacific(adjective, calm, quiet, cool, sensible)
2
casual(adjective, calm, cool, relaxed, restrained)
2
hard-boiled(adjective, calm, sensible, dark, cold)
2
practical(adjective, calm, sensible, dark, restrained)
2
self-assured(adjective, calm, solid, relaxed, certain)
1
deliberate(adjective, calm, quiet, cool, relaxed)
1
possessed(adjective, calm, relaxed, tranquil, easygoing)
1
soft(adjective, calm, sensible, restrained, thoughtful)
1
abnegating(adjective, calm, sensible, dark, restrained)
1
calmed(adjective, calm, relaxed, tranquil, easygoing)
1
clearheaded(adjective, calm, relaxed, tranquil, easygoing)
1
commonsensical(adjective, calm, relaxed, restrained, tranquil)
1
constrained(adjective, calm, sensible, dark, restrained)
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APASmart Define. (2015). imperturbable thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/imperturbable/thesaurus/synonyms
ChicagoSmart Define. 2015. "imperturbable thesaurus" https://smartdefine.org/imperturbable/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, imperturbable thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/imperturbable/thesaurus/synonyms>.
MLASmart Define. "imperturbable thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/imperturbable/thesaurus/synonyms>