Synonyms to hush-hush

arcane, abstract, abstruse, cabalistic, censored, classified, close, closed, concealed, cryptic, dark, deep, eerie, enigmatic, esoteric, extramundane, extraterrestrial, fey, hermetic, hidden, hypernormal, hyperphysical, impenetrable, inscrutable, latent, mysterious, mystic, mystical, numinous, occult, otherworldly, preterhuman, preternatural, preternormal, pretersensual, profound, psychic, recondite, restricted, secret, smothered, spiritual, stifled, superhuman, supernatural, supernormal, superphysical, supersensible, supersensual, suppressed, supramundane, supranatural, top secret, transcendental, transmundane, ulterior, unaccountable, unbreatheable, uncanny, under security, under wraps, undisclosable, undisclosed, undivulgable, undivulged, unearthly, unguessed, unhuman, unknowable, unrevealable, unrevealed, unspoken, untellable, untold, unutterable, unuttered, unwhisperable, unworldly, weird, censor, abbreviate, abridge, annotator, asphyxiate, belittler, black out, bleach, blip, blot out, blue-pencil, bottle up, bowdlerize, cancel, captious critic, carper, caviler, censurer, choke off, clamp d