Synonyms for Un-known:

• adj.

  •clouded (adjective)
  • concerned,
  • indecisive,
  • in question,
  • in doubt,
  • borderline,
  • inconclusive,
  • dubitable,
  • troubled,
  • chancy.
  •extinct (adjective)
  • departed,
  • snuffed out,
  • Disappeared,
  • lifeless,
  • outmoded,
  • fallen,
  • exanimate,
  • out,
  • lost,
  • terminated,
  • ended,
  • Doused,
  • Superseded,
  • late,
  • done for,
  • cold,
  • void,
  • extinguished,
  • deceased,
  • vanished,
  • vanquished,
  • archaic,
  • defunct,
  • no longer known,
  • exterminated,
  • passed on,
  • Abolished,
  • bygone,
  • dead and gone,
  • asleep,
  • inactive,
  • gone.
  •foreign (adjective)
  • barbarian,
  • extralocal,
  • adopted,
  • derived,
  • external,
  • unaccustomed,
  • not native,
  • extrinsic,
  • immigrant,
  • antipodal,
  • alienated,
  • barbaric,
  • outlandish,
  • outside,
  • offshore,
  • different,
  • far-fetched,
  • expatriate,
  • transoceanic,
  • imported,
  • Borrowed,
  • overseas,
  • estranged,
  • nonnative,
  • extraneous,
  • Exiled,
  • not domestic,
  • nonresident,
  • inaccessible,
  • from abroad.
  •hidden (adjective)
  • buried,
  • mystic,
  • latent,
  • Imperceivable,
  • invisible,
  • esoteric,
  • shadowy,
  • Shrouded,
  • unexposed,
  • mysterious,
  • covered,
  • mystical,
  • underground,
  • QT,
  • recondite,
  • obscure,
  • hermetic,
  • undisclosed,
  • indiscernible,
  • ulterior,
  • Eclipsed,
  • clouded,
  • close,
  • undetected,
  • undercover,
  • masked,
  • Screened,
  • withheld,
  • surreptitious,
  • abstruse,
  • clandestine,
  • covert,
  • occult,
  • cloaked,
  • Hermetical,
  • veiled,
  • out of view,
  • in the dark,
  • secluded,
  • disguised,
  • sequestered,
  • cryptic,
  • private.
  •incognito (adjective)
  • camouflaged,
  • isolated,
  • bearded,
  • Masquerading,
  • under assumed name.
  •indefinite (adjective)
  • evasive,
  • indeterminate,
  • inexhaustible,
  • undefined,
  • unfixed,
  • dubious,
  • inexact,
  • infinite,
  • unclear,
  • imprecise,
  • doubtful,
  • intangible,
  • indeterminable,
  • broad,
  • equivocal,
  • undependable,
  • confused,
  • wide,
  • undetermined,
  • unspecific,
  • unlimited,
  • loose,
  • innumerable,
  • unsettled,
  • ill-defined,
  • general,
  • indistinct,
  • uncertain,
  • unsure.
  •mysterious (adjective)
  • difficult,
  • sphinxlike,
  • transcendental,
  • mystifying,
  • perplexing,
  • inexplicable,
  • furtive,
  • oracular,
  • necromantic,
  • puzzling,
  • enigmatical,
  • uncanny,
  • unfathomable,
  • magical,
  • enigmatic,
  • baffling,
  • subjective,
  • incomprehensible,
  • cabalistic,
  • secretive,
  • spiritual,
  • alchemistic,
  • curious,
  • unnatural,
  • impenetrable,
  • unknowable,
  • symbolic,
  • astrological,
  • weird,
  • arcane,
  • insoluble,
  • inscrutable.
  •new (adjective)
  • fashionable,
  • unlike,
  • advanced,
  • uncontaminated,
  • modish,
  • current,
  • unusual,
  • distinct,
  • unique,
  • state-of-the-art,
  • unused,
  • au courant,
  • just out,
  • Neoteric,
  • spick-and-span,
  • now,
  • unspoiled,
  • unskilled,
  • up-to-date,
  • untouched,
  • ultramodern,
  • newfangled,
  • original,
  • untried,
  • novel,
  • dewy,
  • brand-new,
  • cutting-edge,
  • modern,
  • dissimilar,
  • inexperienced,
  • topical,
  • latest,
  • contemporary,
  • unseasoned,
  • recent,
  • untrained,
  • untrodden,
  • youthful,
  • virgin,
  • modernistic.
  •obscure (adjective)
  • inglorious,
  • minor,
  • inconspicuous,
  • unhonored,
  • lowly,
  • deep,
  • lonesome,
  • unimportant,
  • odd,
  • irrelevant,
  • orphic,
  • devious,
  • solitary,
  • unseen,
  • blind,
  • retired,
  • rare,
  • reticent,
  • removed,
  • seldom seen.
  •occult (adjective)
  • magic,
  • unearthly,
  • eerie,
  • preternatural,
  • Acroamatic,
  • psychic,
  • transmundane,
  • profound.
  •remote (adjective)
  • far-flung,
  • off the beaten path,
  • frontier,
  • lonely,
  • god-knows-where,
  • outlying,
  • back,
  • in a backwater,
  • godforsaken,
  • beyond,
  • middle of nowhere,
  • off-lying,
  • wild.
  •secret (adjective)
  • closet,
  • cloak-and-dagger,
  • classified,
  • unpublished,
  • unfrequented,
  • backdoor,
  • unenlightened,
  • out-of-the-way,
  • on the qt,
  • under wraps,
  • conspiratorial,
  • hush-hush,
  • unintelligible,
  • ambiguous.
  •strange (adjective)
  • awkward,
  • romanesque,
  • romantic,
  • unrelated,
  • out of place,
  • detached,
  • apart.
  •supernatural (adjective)
  • fabulous,
  • celestial,
  • mythical,
  • numinous,
  • abnormal,
  • miraculous,
  • fairy,
  • superior,
  • ghostly,
  • superordinary,
  • Supermundane,
  • phantom,
  • phenomenal,
  • uncomprehensible,
  • mythological,
  • supranatural,
  • metaphysical,
  • paranormal,
  • legendary,
  • spectral,
  • superhuman,
  • heavenly.
  •superphysical (adjective)
  • Extramundane,
  • Supersensible,
  • extrasensory.
  •supersensible (adjective)
  • Superphysical.
  •unaccustomed (adjective)
  • exceptional,
  • remarkable,
  • unorthodox,
  • singular,
  • out of the ordinary,
  • altered,
  • uncommon,
  • surprising,
  • special,
  • eccentric,
  • bizarre,
  • variant,
  • uncustomary,
  • unwonted,
  • quaint,
  • unprecedented,
  • unexpected,
  • unconventional.
  •unacquainted (adjective)
  • unadorned.
  •undetected (adjective)
  • untraveled.
  •undetermined (adjective)
  • irresolute,
  • unproven,
  • vague,
  • wavering,
  • undecided,
  • pending,
  • abeyant.
  •unfamiliar (adjective)
  • fantastic,
  • extraordinary,
  • unaware,
  • uninitiated,
  • anomalous,
  • unacquainted,
  • not associated,
  • Inconversant,
  • ignorant,
  • not versed in,
  • Unconversant,
  • unknowing,
  • unpracticed,
  • uninvestigated,
  • uninformed,
  • out of contact,
  • peculiar,
  • uninstructed,
  • oblivious,
  • unversed,
  • unwitting,
  • incognizant.
  •unheard-of (adjective)
  • preposterous,
  • shocking,
  • inconceivable,
  • unbelievable,
  • unlikely,
  • little-known.
  •unheralded (adjective)
  • unnoticed.
  •unidentified (adjective)
  • unclassified,
  • not known,
  • unmarked,
  • pseudonymous.
  •unknown (adjective)
  • anonymous,
  • secret,
  • nameless,
  • Incog,
  • incognito,
  • foreign,
  • unfamiliar,
  • uncelebrated,
  • Unapprehended,
  • remote,
  • exotic,
  • so-and-so,
  • unnoted,
  • Unrenowned,
  • undistinguished,
  • strange,
  • hidden,
  • unrecognized,
  • humble,
  • unidentified,
  • unsung,
  • distant,
  • desolate,
  • unperceived,
  • unnamed,
  • new,
  • X,
  • Unascertained,
  • unheard-of,
  • alien,
  • concealed,
  • far,
  • such-and-such,
  • dark,
  • untold,
  • unrevealed,
  • uncharted,
  • little known,
  • unexplained,
  • faraway,
  • unexplored,
  • far-off,
  • undiscovered.
  •unnamed (adjective)
  • Innominate,
  • undubbed,
  • unsigned.
  •unsung (adjective)
  • neglected,
  • unfamed,
  • unacknowledged,
  • unhailed,
  • disregarded,
  • Unglorified,
  • overlooked,
  • unacclaimed,
  • forgotten.
  •untold (adjective)
  • unexpressed,
  • myriad,
  • immense,
  • many,
  • unthinkable,
  • monstrous,
  • prodigious,
  • multitudinous,
  • manifold,
  • staggering,
  • inexpressible,
  • incalculable,
  • innumerous,
  • huge,
  • suppressed,
  • uncountable,
  • vast,
  • measureless,
  • unimaginable,
  • undreamed of,
  • gigantic,
  • uncounted,
  • titanic,
  • unnumberable,
  • numberless,
  • unnumbered,
  • multiple,
  • beyond measure,
  • indescribable,
  • mighty,
  • mammoth,
  • countless,
  • unspeakable.
  •vague (adjective)
  • cloudy,
  • blurred,
  • nebulous,
  • lax,
  • unspecified,
  • questionable,
  • generalized,
  • unexplicit,
  • superficial,
  • dreamlike,
  • tenebrous,
  • hazy,
  • bewildering,
  • misunderstood,
  • muddy,
  • faint,
  • problematic,
  • indefinite,
  • dim,
  • fuzzy,
  • impalpable,
  • amorphous,
  • Amphibological,
  • bleary.

• n.

  •dark horse (noun)
  • underdog,
  • sleeper,
  • poor lookout,
  • little opportunity,
  • stalking horse,
  • poor prognosis,
  • slim chance,
  • unlikely winner,
  • poor prospect,
  • unknown quantity,
  • small chance,
  • outside chance,
  • improbability,
  • outside shot,
  • poor bet,
  • unlikelihood,
  • poor possibility,
  • little chance,
  • unknown,
  • upsetter,
  • hundred-to-one shot,
  • also-ran,
  • unexpected winner,
  • long shot.
  •frontier (noun)
  • boondocks,
  • outback,
  • bush,
  • backwater,
  • boonies,
  • backcountry,
  • outskirts,
  • hinterland,
  • sticks,
  • backwoods.
  •great beyond (noun)
  • Next world,
  • the great unknown,
  • the beyond,
  • the unknown,
  • world beyond.
  •secret (noun)
  • confidential information,
  • classified information,
  • puzzle,
  • privileged information,
  • skeleton in cupboard,
  • code,
  • enigma,
  • oracle,
  • mystery,
  • confidence,
  • formula,
  • key,
  • magic number,
  • password,
  • cipher.
  •stranger (noun)
  • intruder,
  • interloper,
  • out-of-stater,
  • Incomer,
  • itinerant person,
  • perfect stranger,
  • squatter,
  • outcomer,
  • uninvited person,
  • newcomer,
  • unknown person,
  • transient,
  • foreigner,
  • foreign body,
  • new arrival,
  • outlander,
  • party crasher,
  • wanderer,
  • migrant,
  • outsider,
  • visitor,
  • drifter,
  • migratory worker,
  • guest.
  •world beyond (noun)
  • hereafter,
  • great beyond,
  • world to come,
  • afterlife.

Antonyms for Un-known:

• adj.

  • clouded
    untroubled.
  • extinct
    existing, living, extant, alive.
  • foreign
    local, national, characteristic.
  • hidden
    bare, apparent, obvious, out, aboveboard, manifest, visible, sociable, bright, Exhibited, uncovered, public, revealed, unconcealed, open, unmasked, exposed, plain, disclosed, seen, showing, clear.
  • incognito
    openly, unhidden.
  • indefinite
    certain, finite, limited, sure, distinct, definite, bounded.
  • mysterious
    comprehensible, straightforward, tangible, unmysterious, intelligible, evident, comprehendible.
  • mystifying
    understandable.
  • new
    like, future, existent, worn, standard, Deteriorated, similar, outdated, old-fashioned, past, old, out-of-date, unstylish, antiquated.
  • obscure
    perceptible, distinguished, approachable, near, related, famous, warm, friendly, nearby, understood, explicit.
  • occult
    natural.
  • remote
    gentle, possible, loved, Befriended, close, mingling, likely, probable, convenient.
  • secret
    forthright, honest, defined, legal, legitimate, light.
  • supernatural
    genuine, hellish, earthly, real, true.
  • unaccustomed
    customary, ready, prepared, accustomed.
  • unacquainted
    acquainted.
  • undetermined
    decided, settled.
  • unfamiliar
    experienced, knowing, aware, ordinary, versed.
  • unheard-of
    believable, unexceptional.
  • unheralded
    celebrated, expected, announced, glorified, predicted, recognized.
  • unknown
    known, normal, named, common, Familiar, usual, regular, native, relevant, identified.
  • untold
    describable, measurable, few, calculable, Numbered, tiny, numerable, little, small, countable.
  • vague
    determined, secure.

• n.

  • frontier
    metropolis.
  • secret
    public knowledge, revelation.
  • stranger
    citizen, friend, acquaintance.