95 entries under restrained topic. ×

1
unimpressed(adjective, calm, quiet, cool, moderate)
1
untiring(adjective, calm, quiet, gentle)
0
abstaining(adjective, calm, sensible, dark)
0
capable(adjective, calm, quiet, gentle)
0
cold fish(expression, adjective, calm, detached)
0
not influenced(expression, adjective, calm, subdued)
0
persevering(adjective, calm, quiet, gentle)
0
persistent(adjective, calm, quiet, gentle)
0
proof(adjective, calm, subdued, impassive)
0
tepid(adjective, calm, subdued, impassive)
0
unagitated(adjective, calm, quiet, relaxed)
0
unaltered(adjective, calm, subdued, impassive)
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unchanged(adjective, calm, subdued, impassive)
0
uninfluenced(adjective, calm, subdued, impassive)
0
unstirred(adjective, calm, subdued, impassive)
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APASmart Define. (2015). imperturbable thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/imperturbable/thesaurus/synonyms
ChicagoSmart Define. 2015. "imperturbable thesaurus" https://smartdefine.org/imperturbable/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, imperturbable thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/imperturbable/thesaurus/synonyms>.
MLASmart Define. "imperturbable thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/imperturbable/thesaurus/synonyms>