2
muffle(verb, calm, dull, quiet, suppress)
2
muzzle(verb, calm, dull, quiet, suppress)
2
mysterious(quiet, clandestine, underground, undisclosed, intriguing)
2
mystical(clandestine, underground, undisclosed)
2
not for publication(expression, adjective, idiom, secret, private)
2
occult(clandestine, underground, undisclosed)
2
on the QT(expression, idiom, dishonest, secret, private)
2
overawe(verb, calm, dull, quiet, suppress)
2
pipe down(verb, expression, calm, dull, quiet)
2
privileged
2
quash(verb, calm, dull, quiet, suppress)
2
quell(verb, calm, dull, quiet, suppress)
2
quiet down(verb, expression, calm, dull, quiet)
2
say nothing(verb, expression, calm, dull, quiet)
2
secrecy(calm, quiet, speech, silence, softness)
2
secretive(adjective, quiet, dishonest, cunning, deceitful)
2
sneak(clandestine, underground, undisclosed, skulking)
2
squelch(verb, calm, dull, quiet, suppress)
2
stifle(verb, calm, dull, quiet, suppress)
2
strike dumb(expression, calm, dull, quiet, suppress)
11 years ago|3.3k views|share |citing 
APASmart Define. (2015). hush-hush thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/hush-hush/thesaurus/synonyms
ChicagoSmart Define. 2015. "hush-hush thesaurus" https://smartdefine.org/hush-hush/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, hush-hush thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/hush-hush/thesaurus/synonyms>.
MLASmart Define. "hush-hush thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/hush-hush/thesaurus/synonyms>