9
subdued(adjective, calm, quiet, reasonable, gentle)
7
quiet(adjective, calm, dull, cool, reasonable)
6
restrained(adjective, calm, quiet, soft, reasonable)
6
sober(adjective, calm, dull, quiet, soft)
6
soft(adjective, calm, quiet, reasonable, gentle)
5
low-keyed(adjective, sounds)
5
understated(adjective, quiet, modest, faint, subdued)
4
moderate(adjective, calm, quiet, cool, reasonable)
4
subtle(adjective, quiet, gentle, plain, restrained)
3
calm(adjective, quiet, cool, soft, reasonable)
3
easygoing(adjective, subdued, understated, unglamorous, unspectacular)
3
hushed(adjective, quiet, cool, smooth, gentle)
3
laid-back(adjective, calm, quiet, cool, informal)
3
loose(adjective, subdued, understated, unglamorous, unspectacular)
3
low(adjective, quiet, gentle, restrained, faint)
3
muted(adjective, quiet, gentle, plain, restrained)
3
relaxed(adjective, quiet, cool, still, peaceful)
3
reserved(adjective, calm, soft, reasonable, gentle)
3
softened(adjective, quiet, gentle, restrained, subdued)
2
do-nothing(adjective, dull, idle, sluggish, lazy)
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APASmart Define. (2015). low-key thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/low-key/thesaurus/synonyms
ChicagoSmart Define. 2015. "low-key thesaurus" https://smartdefine.org/low-key/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, low-key thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/low-key/thesaurus/synonyms>.
MLASmart Define. "low-key thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/low-key/thesaurus/synonyms>