Synonyms for Undercover:

• adj.

  •clandestine (adjective)
  • more closet,
  • under-cover,
  • in holes corners,
  • foxy,
  • most closet,
  • under cover,
  • on the q t,
  • on q t,
  • on qt,
  • most under the counter,
  • more under the counter,
  • in holes and corners,
  • more under-the-counter,
  • most under-the-counter,
  • on quiet.
  •cloak-and-dagger (adjective)
  • most hugger-mugger,
  • more hugger mugger,
  • more hugger-mugger,
  • most hugger mugger,
  • hugger mugger,
  • cloak and dagger.
  •covert (adjective)
  • more dissembled,
  • masked,
  • Incog,
  • most under the table,
  • more under-the-table,
  • un-suspected,
  • most shrouded,
  • more under the table,
  • more shrouded,
  • most incog,
  • in-cog,
  • more incog,
  • most under-the-table,
  • most dissembled,
  • un suspected,
  • in cog.
  •disguised (adjective)
  • fakest,
  • most pretend,
  • pre-tend,
  • dis guised,
  • more pretend,
  • dis-guised,
  • pre tend.
  •furtive (adjective)
  • more sub-rosa,
  • under-handed,
  • more sub rosa,
  • more conspiratorial,
  • most skulking,
  • more skulking,
  • under handed,
  • most sub-rosa,
  • most subrosa,
  • most slinking,
  • more subrosa,
  • more slinking,
  • most conspiratorial,
  • most sub rosa,
  • subrosa.
  •hidden (adjective)
  • more hermetical,
  • more eclipsed,
  • most unrevealed,
  • un-known,
  • un detected,
  • more imperceivable,
  • in visible,
  • most hermetical,
  • withheld,
  • un-revealed,
  • out view,
  • Imperceivable,
  • most sequestered,
  • in-visible,
  • most eclipsed,
  • un revealed,
  • in discernible,
  • un-detected,
  • un-exposed,
  • un known,
  • in-discernible,
  • more sequestered,
  • with-held,
  • hermetic,
  • with held,
  • more unrevealed,
  • in dark,
  • un disclosed,
  • most imperceivable,
  • un-disclosed,
  • un exposed.
  •hush-hush (adjective)
  • hush hush,
  • hushhush.
  •lubricious (adjective)
  • dis ingenuous,
  • dis-ingenuous.
  •secret (adjective)
  • enigmatical.
  •secretive (adjective)
  • in privacy,
  • buttoned up,
  • unforthcoming,
  • in chambers,
  • clammed up.
  •stealthy (adjective)
  • sneakest.
  •subterrestrial (adjective)
  • sub-terrestrial,
  • hypo gean,
  • sub terrestrial,
  • hypo-gean.
  •underground (adjective)
  • unbowed,
  • under ground.
  •underhand (adjective)
  • dirty dealing,
  • dirty-dealing.
  •veiled (adjective)
  • more shielded,
  • most shielded,
  • un-recognizable,
  • un recognizable.

• adv.

  •covertly (adverb)
  • stealthily.

• adv

  •covertly (adverb)
  • furtively,
  • in camera,
  • by stealth,
  • on the sly.

• n.

  •
  • in strict confidence,
  • mysterious,
  • secretive,
  • shadowy,
  • classified,
  • confidential.
  •
  • show,
  • under wraps,
  • huggermugger,
  • sub rosa.

• Other synonyms:

  •
  • safe.
  •Other relevant words:
  • gloomily,
  • lubricious,
  • darkly,
  • secluse,
  • in a corner,
  • arcanum,
  • murkily,
  • eerie,
  • coated,
  • unknown,
  • emissary,
  • not expressed,
  • sheathed,
  • in the dark,
  • armored,
  • eccentric,
  • Housed,
  • watchtower,
  • mole,
  • concealed,
  • unexposed,
  • spook,
  • cupboard,
  • walled,
  • closet,
  • clandestinely,
  • sneak,
  • under the breath,
  • terra firma,
  • unavowed,
  • Hid,
  • console,
  • cabinet,
  • obscure,
  • intelligence,
  • abnormal,
  • skulking,
  • stealth,
  • mysteriously,
  • closeness,
  • quietly,
  • Swathed,
  • Loricate,
  • confidentially,
  • silence,
  • lurking,
  • privately,
  • latent,
  • shielded,
  • press,
  • in hiding,
  • underhanded,
  • Subterrestrial,
  • Coped,
  • under the rose,
  • subterraneous,
  • analytical,
  • muffled,
  • mantled,
  • abstruse,
  • paved,
  • clouded,
  • close,
  • dimly,
  • Intelligencer,
  • blind,
  • secretiveness,
  • cryptic,
  • strangely,
  • watchman,
  • confidentiality,
  • watchdog,
  • Tented,
  • mystic,
  • pussyfooted,
  • sequestered,
  • back door,
  • inwardly,
  • orphic,
  • exploratory,
  • concealment,
  • agent,
  • inscrutable,
  • mystery,
  • panoplied,
  • sotto voce,
  • plainclothesman,
  • in the clear,
  • wrapped,
  • illegal,
  • secretly,
  • Duskily,
  • Slinking,
  • Eclipsed,
  • in a whisper,
  • spy,
  • filmed,
  • incognito,
  • patrol,
  • remote,
  • personal,
  • mystical,
  • Prowling,
  • sly,
  • scout,
  • secrecy,
  • retirement,
  • feline,
  • cased,
  • cryptically,
  • in secret,
  • darkness,
  • enwrapped,
  • sneakily,
  • packaged,
  • atypical,
  • Stealthful,
  • shifty,
  • Ceiled,
  • out of danger,
  • enveloped,
  • in the wings,
  • backdoor,
  • at anchor,
  • Obfuscated,
  • unobtrusive,
  • in darkness,
  • backstairs,
  • incommunicado,
  • subterranean,
  • in the shade,
  • behind the veil,
  • sentinel,
  • stealing,
  • in a cloud,
  • Hooded,
  • seclusion,
  • case,
  • Vedette,
  • rear guard,
  • in the background,
  • secluded,
  • patrolman,
  • buried,
  • in ambush,
  • topsy-turvy,
  • Ensconced,
  • retreat,
  • encapsuled,
  • walled-in,
  • behind-the-scenes,
  • closely,
  • Scummed,
  • doggo,
  • individual,
  • sentry,
  • Perdu,
  • privateness,
  • belowground,
  • encased,
  • occult,
  • lighthouse,
  • above water,
  • on the qt,
  • mystically,
  • esoteric,
  • pussyfoot,
  • Obscured,
  • lookout,
  • in a fog,
  • Bandog,
  • Slinky,
  • disorderly,
  • encapsulated,
  • Spial,
  • watch,
  • deep,
  • creep,
  • mamma,
  • behind the curtain,
  • bivouac,
  • locker,
  • Loricated,
  • covered,
  • housedog,
  • Beclouded,
  • obscurely,
  • Occulted,
  • with bated breath,
  • irregular,
  • shelled,
  • privy,
  • surreptitiously,
  • secret police,
  • privacy,
  • in safety,
  • curtained,
  • cloaked,
  • sneaky,
  • internally,
  • Screened,
  • quiet,
  • erratic,
  • cowled,
  • underneath,
  • jumbled,
  • picket,
  • sheltered,
  • beacon,
  • inside man,
  • recondite,
  • enigmatically,
  • disguised,
  • in private,
  • watch and ward,
  • floored,
  • invisible.

Paraphrases for Undercover:

• Equivalence

  • Adjective
    plain-clothes.

• Independent

  • Adjective
    hidden, disguised, unmarked, secretive, undocumented, couverture, undisclosed, surreptitious, under, incommunicado.

• Other Related

  • Adjective
    incognito.

Antonyms for Undercover:

• adj.

  • secret, spy
    open, public, known.
  • Other antonyms:
    manifest, acknowledged, undisguised, aboveboard, plain, unconcealed, evident, patent, unclassified, unrestricted, avowed, straightforward, obvious, clear.