56 entries under peaceful topic. ×

1
hushful(adjective, close, quiet, smooth, soft)
1
inaudible(adjective, close, quiet, soft, low)
1
low(adjective, close, quiet, soft)
1
low-pitched(adjective, close, quiet, soft, low)
1
mild(quiet, gentle, aloof, reserved)
1
muffled(adjective, close, quiet, soft, low)
1
muted(adjective, close, quiet, soft, low)
1
noiseless(adjective, close, quiet, smooth, soft)
1
noncommittal(adjective, quiet, gentle, aloof)
1
not saying boo(expression, adjective, idiom, close, quiet)
1
placid(adjective, calm, close, quiet, smooth)
1
prim(adjective, quiet, gentle, aloof)
1
quiescent(adjective, close, quiet, soft, low)
1
quieted(adjective, close, quiet, soft, low)
1
sedate(adjective, quiet, gentle, aloof)
1
serene(adjective, calm, close, quiet, smooth)
1
soft(adjective, close, quiet, low)
1
soft-spoken(adjective, quiet, gentle, aloof)
1
soundless(adjective, close, quiet, smooth, soft)
1
speechless(adjective, close, quiet, soft, low)
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APASmart Define. (2015). close-mouthed thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/close-mouthed/thesaurus/synonyms
ChicagoSmart Define. 2015. "close-mouthed thesaurus" https://smartdefine.org/close-mouthed/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, close-mouthed thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/close-mouthed/thesaurus/synonyms>.
MLASmart Define. "close-mouthed thesaurus" 10 April 2015. Web. 1 October 2026. <https://smartdefine.org/close-mouthed/thesaurus/synonyms>