1. (a.) Hidden; concealed; as, secret treasure; secret plans; a secret vow.
2. (a.) Withdraw from general intercourse or notice; in retirement or secrecy; secluded.
3. (a.) Faithful to a secret; not inclined to divulge or betray confidence; secretive.
4. (a.) Separate; distinct.
5. (a.) Something studiously concealed; a thing kept from general knowledge; what is not revealed, or not to be revealed.
6. (n.) A thing not discovered; what is unknown or unexplained; a mystery.
7. (n.) The parts which modesty and propriety require to be concealed; the genital organs.
8. (v. t.) To keep secret.
Thesaurus Entries
abstract, abstruse, arcane, arcanum, beclouded, behind the curtain, behind the scenes, blind, buried, by stealth, cabala, cabalistic, camouflaged, censored, clandestine, classified, classified information, close, closed, closemouthed, clouded, concealed, confidence, confidential, confidential communication, confidentially, covered, covert, cryptic, cryptographic, dark, deep, deep-seated, devious, discreet, disguised, eclipsed, encrypted, enigma, enigmatic, esoteric, esoterica, evasive, furtive, furtively, genitals, guarded secret, heavy, hermetic, hermetics, hid, hidden, hole-and-corner, hugger-mugger, hush-hush, immanent, imperceptible, implanted, implicit, in a cloud, in a fog, in eclipse, in purdah, in secret, in the wings, inalienable, incommunicado, incomprehensible, indiscernible, indwelling, infixed, ingrained, inherent, inner, insensible, internal, intrinsic, invisible, inward, inwrought, irreducible, latent, lonesome, mysterious, mystery, mystery of mysteries, mystical, obfuscated, obscure, obscured, occult, on the sly, out of sight, out-of-the-way, parts, personal matter, private, private matter, private parts, privately, privates, privileged communication, privity, privy, privy parts, profound, profound secret, pudenda, quiet, quietly, recondite, remote, removed, resident, restricted, restricted information, retired, screened, sealed book, secluded, secluse, secretive, secretly, sequestered, shifty, shrouded, sightless, smothered, sneak, stealthily, stealthy, stifled, subjective, submerged, suppressed, surreptitious, surreptitiously, the occult, top secret, top-secret, transcendental, ulterior, unacknowledged, unalienable, unapparent, unbeheld, unbeholdable, unbreatheable, unchallengeable, uncommunicative, undeclared, under an eclipse, under cover, under house arrest, under security, under wraps, under-the-table, undercover, underground, underhand, underhanded, underneath, undiscernible, undisclosable, undisclosed, undivulgable, undivulged, unknown, unnoticed, unobserved, unperceivable, unperceived, unpublishable, unpublished, unquestionable, unrealized, unrevealable, unrevealed, unseeable, unseen, unspoken, untellable, untold, unutterable, unuttered, unviewed, unwhisperable, unwitnessed, viewless, wrapped in clouds
