46 entries under dull topic. ×

2
muzzle(verb, stop, calm, quiet)
2
overawe(verb, calm, quiet, suppress)
2
pipe down(verb, expression, phrasal verb, calm)
2
quiet down(verb, expression, phrasal verb, calm)
2
quieten(verb, calm, quiet, suppress)
2
say nothing(verb, expression, calm, quiet)
2
silence(verb, stop, calm, quiet)
2
sit on(verb, expression, phrasal verb, stop, calm)
2
soft-pedal(verb, calm, quiet, suppress)
2
squelch(verb, stop, calm, quiet)
2
still(verb, calm, quiet, suppress)
2
strike dumb(verb, expression, calm, quiet)
2
suppress(verb, stop, calm, quiet)
2
tongue-tie(verb, calm, quiet, suppress)
1
calm(verb, quiet, subdue, relax)
1
calm down(verb, expression, phrasal verb, calm)
1
dampen(verb, calm, quiet, suppress)
1
deaden(verb, calm, quiet, suppress)
1
fall silent(verb, expression, calm, quiet)
1
mute(verb, calm, quiet, suppress)
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APASmart Define. (2015). clam up thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/clam_up/thesaurus/synonyms
ChicagoSmart Define. 2015. "clam up thesaurus" https://smartdefine.org/clam_up/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, clam up thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/clam_up/thesaurus/synonyms>.
MLASmart Define. "clam up thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/clam_up/thesaurus/synonyms>