1
deathly still(expression, adjective, calm, quiet, smooth)
1
discreet(adjective, quiet, soft, low, restrained)
1
distant(aloof, reserved, reticent, taciturn, uncommunicative)
1
dour(aloof, reserved, reticent, uncommunicative)
1
dried-up(aloof, reserved, reticent, uncommunicative)
1
dried up(expression, close, quiet, restrained, reserved)
1
dummied up(verb, expression, adjective, close, quiet)
1
dummy up(expression, close, quiet, gag, quieten)
1
enigmatic(mysterious, private, reticent, taciturn, uncommunicative)
1
evasive(careful, vague, reserved, wary, ambiguous)
1
even-steven
1
faint(quiet, soft, still, silent, hushed)
1
feline(mysterious, private, reticent, taciturn, uncommunicative)
1
fixed(adjective, calm, quiet, smooth, tranquil)
1
furtive(mysterious, private, reticent, taciturn, uncommunicative)
1
guarded(careful, vague, reserved, mysterious, wary)
1
halcyon(adjective, calm, quiet, smooth, tranquil)
1
hush(verb, adjective, calm, close, quiet)
1
hush-hush(careful, vague, reserved, wary, ambiguous)
1
hushful(adjective, close, quiet, smooth, soft)
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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>