133 entries under calm topic. ×

6
disciplined(verb, adjective, quiet, reasonable)
6
self-controlled(adjective, quiet, reasonable, gentle)
6
unemotional(adjective, controlled, self-possessed, phlegmatic)
5
aloof(adjective, close, quiet, gentle)
5
low-key(adjective, quiet, soft, reasonable)
5
pacific(adjective, quiet, soft, reasonable)
5
plain(adjective, simple, sensible, pure)
5
retiring(adjective, close, quiet, cold)
5
undemonstrative(adjective, close, quiet, gentle)
5
withdrawn(adjective, quiet, gentle, cold)
4
abnegating(adjective, quiet, reasonable, sensible)
4
cold(adjective, close, quiet, gentle)
4
impassive(adjective, subdued, unemotional, unresponsive)
4
muted(verb, adjective, close, quiet)
4
shrinking(adjective, quiet, shy, thoughtful)
4
soft(adjective, close, quiet, reasonable)
4
staid(adjective, good, quiet, correct)
4
unexpansive(adjective, reticent, controlled, unassuming)
4
unruffled(adjective, quiet, reasonable, sensible)
3
imperturbable(adjective, sensible, alert, subdued)
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APASmart Define. (2015). restrained thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/restrained/thesaurus/synonyms
ChicagoSmart Define. 2015. "restrained thesaurus" https://smartdefine.org/restrained/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, restrained thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/restrained/thesaurus/synonyms>.
MLASmart Define. "restrained thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/restrained/thesaurus/synonyms>