Synonyms for Hush-hush:

• adj.

  •cloak-and-dagger (adjective)
  • hugger mugger.
  •concealed (adjective)
  • camouflaged,
  • disguised,
  • censored,
  • enshrouded,
  • covert,
  • secret,
  • masked,
  • Obscured,
  • stealthy,
  • buried,
  • Shrouded,
  • anonymous,
  • cloaked,
  • concealed,
  • Screened,
  • hidden.
  •private (adjective)
  • nonpublic.
  •secret (adjective)
  • closet,
  • restricted,
  • sub-rosa,
  • under-the-table,
  • huggermugger,
  • backstairs,
  • covert,
  • secret,
  • surreptitious,
  • classified,
  • clandestine,
  • dark,
  • furtive,
  • privy,
  • arcane,
  • private,
  • stealthy,
  • undercover,
  • confidential.
  •subterranean (adjective)
  • subterranean.
  •surreptitious (adjective)
  • hole-and-corner.
  •undercover (adjective)
  • under cover.
  •underground (adjective)
  • Subterrestrial.
  •underhand (adjective)
  • lubricious.
  •under wraps (adjective)
  • under wraps.

• n.

  •
  • inside,
  • mysterious,
  • auricular,
  • secretive,
  • private.
  •
  • huggermugger.
  •hush-hush (noun)
  • cloak-and-dagger,
  • undercover,
  • covert,
  • clandestine,
  • hole-and-corner,
  • underground,
  • surreptitious,
  • secret.

• Other synonyms:

  •
  • auricular.
  •
  • cat.
  •
  • inside.
  •privately
  • secretly.
  •quieten
  • quieten.
  •restricted
  • top-secret.
  •silence
  • sit on,
  • shush.
  •Other relevant words:
  • occult,
  • mystical,
  • undisclosed,
  • unutterable,
  • ulterior,
  • mystic,
  • untellable,
  • underhand,
  • suppressed,
  • unspoken,
  • underground,
  • kill,
  • shut down,
  • not for publication,
  • sneaking,
  • cat,
  • censor,
  • secretiveness,
  • privy,
  • disorderly,
  • muffle,
  • smother,
  • untold,
  • backstairs,
  • intimate,
  • sub-rosa,
  • quash,
  • throttle,
  • hush,
  • suppress,
  • undercover,
  • hugger mugger,
  • squelch,
  • stifle,
  • cloak-and-dagger,
  • huggermugger,
  • still,
  • dark,
  • latent,
  • topsy-turvy,
  • under-the-table,
  • silence,
  • unpublished,
  • unuttered,
  • mysterious,
  • dumbfound,
  • squash,
  • unavowed,
  • cryptic,
  • shush,
  • muzzle,
  • close,
  • Shrouded,
  • behind-the-scenes,
  • unofficial,
  • closemouthed,
  • soft pedal,
  • hole-and-corner,
  • auricular,
  • quiet,
  • sit on,
  • closet,
  • surreptitious,
  • enigmatic,
  • hermetic,
  • secretive,
  • closed,
  • cabalistic,
  • cut short,
  • secrecy,
  • nonpublic,
  • lubricious,
  • under cover,
  • black out,
  • orphic,
  • under wraps,
  • choke,
  • unrevealed,
  • unpublishable,
  • stifled,
  • secretly,
  • Secretness,
  • subterranean,
  • inside,
  • quieten,
  • Undivulged,
  • private,
  • privileged,
  • repress,
  • noncommittal,
  • gag,
  • Subterrestrial,
  • esoteric,
  • uncommunicative,
  • top-secret,
  • underhanded,
  • smothered,
  • sneak.

Antonyms for Hush-hush:

• adj.

  • secret
    revealed, public, Told, known.
  • Other antonyms:
    broadcast, declared, widespread, advertised, reported, plain, prevalent, manifest, published, rife, overt, clear, shared, acknowledged, patent, well-known, obvious, current, unclassified, open, vulgar, popular, announced, professed, disclosed, common, undisguised, aired, proclaimed, publicized, prevailing, avowed, communal, straightforward, heralded, promulgated, unconcealed, aboveboard, unrestricted, evident, general.