Synonyms|95Antonyms|0|Broader|0Narrower|0Related|10
1
unsociable(still, hushed, soundless)
1
unspeaking(adjective, close, quiet, restrained, still)
1
voiceless(still, hushed, soundless)
1
wordless(adjective, close, quiet, restrained, still)
1
zipped(still, hushed, soundless)
0
ban
0
blocked
0
buttoned
0
choke off(expression, quieten, shush, dulling)
0
clam up(expression, quieten, shush, dulling)
0
clamming up(expression, quieten, shush, dulling)
0
close up(expression, quieten, shush, dulling)
0
closed off(verb, phrasal verb)
0
confidentiality(adjective, hushed, wordless)
0
cool it(expression, quieten, shush, dulling)
0
decrease the volume(expression, idiom, quieten, shush, dulling)
0
decrease volume(expression, quieten, shush, dulling)
0
dried up(expression, quieten, shush, dulling)
0
dry up(expression, quieten, shush, dulling)
0
drying up(expression, quieten, shush, dulling)
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APASmart Define. (2015). closed up thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/closed_up/thesaurus/synonyms
ChicagoSmart Define. 2015. "closed up thesaurus" https://smartdefine.org/closed_up/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, closed up thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/closed_up/thesaurus/synonyms>.
MLASmart Define. "closed up thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/closed_up/thesaurus/synonyms>