73 entries under adjective topic. ×

26
mute(quiet, aloof, reticent, speak)
25
silent(close, quiet, soft, low)
18
quiet(soft, low, restrained, still)
16
speechless(quiet, aloof, reserved, reticent)
15
taciturn(close, quiet, restrained, still)
13
dumb(quiet, soft, aloof, reticent)
13
tight-lipped(quiet, restrained, aloof, reserved)
12
wordless(quiet, soft, low, silent)
12
voiceless(quiet, low, silent, dumb)
9
reserved(close, quiet, restrained, still)
9
uncommunicative(close, quiet, soft, low)
9
reticent(close, quiet, restrained, still)
9
secretive(quiet, restrained, reticent, silent)
8
still(quiet, soft, low, silent)
7
hushed(quiet, soft, low, still)
7
inarticulate(quiet, soft, awkward, still)
7
soundless(quiet, soft, low, still)
7
tongue-tied(quiet, awkward, reticent, silent)
5
curt(aloof, reserved, reticent, taciturn)
5
inaudible(quiet, soft, low, still)
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APASmart Define. (2015). mum thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/mum/thesaurus/synonyms
ChicagoSmart Define. 2015. "mum thesaurus" https://smartdefine.org/mum/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, mum thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/mum/thesaurus/synonyms>.
MLASmart Define. "mum thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/mum/thesaurus/synonyms>