0
at a standstill(expression, adjective, idiom, tranquil, silent)
0
at ease(expression, silenced, whist, disimpassioned)
0
backstage(unknowing, hermetical, unbriefed)
0
be calm(quiet, inactivate)
0
be silent
0
behind the curtain(expression, idiom, unknowing, hermetical, unbriefed)
0
behind the scenes(expression, idiom, unknowing, hermetical, unbriefed)
0
birdbrained(unknowing, hermetical, unbriefed)
0
blind to(expression, unknowing, hermetical, unbriefed)
0
can it(expression, quiet, inactivate)
0
caught napping(expression, unknowing, hermetical, unbriefed)
0
choke off(expression, quieten, shush, dulling)
0
close up(expression, quieten, shush, dulling)
0
composed(silenced, whist, disimpassioned)
0
confidentiality(adjective, hushed, wordless)
0
cool(astonished, thunderstruck, flabbergasted)
0
cool as cucumber(expression, idiom, silent, dazed, dumb)
0
cool it(expression, quiet, quieten, inactivate, shush)
0
cool out(expression, quiet, inactivate)
0
cretinous(unknowing, hermetical, unbriefed)
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APASmart Define. (2013). clammed up thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/clammed_up/thesaurus/synonyms
ChicagoSmart Define. 2013. "clammed up thesaurus" https://smartdefine.org/clammed_up/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2013, clammed up thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/clammed_up/thesaurus/synonyms>.
MLASmart Define. "clammed up thesaurus" 18 May 2013. Web. 22 September 2026. <https://smartdefine.org/clammed_up/thesaurus/synonyms>