Synonyms for Under cover:

• adj.

  •clandestine (adjective)
  • artful,
  • illicit,
  • fraudulent,
  • foxy,
  • illegitimate,
  • undercover,
  • sneaky.
  •covert (adjective)
  • privy,
  • Obscured,
  • secret,
  • disguised,
  • QT,
  • buried,
  • unsuspected,
  • Shrouded,
  • veiled,
  • Incog.
  •disguised (adjective)
  • changed,
  • fake,
  • false,
  • feigned,
  • covered.
  •furtive (adjective)
  • wily,
  • elusive,
  • evasive,
  • cautious,
  • guileful,
  • scheming,
  • insidious,
  • circumspect,
  • underhanded,
  • calculating,
  • shifty,
  • sly,
  • cunning.
  •hidden (adjective)
  • dark,
  • mystic,
  • latent,
  • recondite,
  • indiscernible,
  • obscure,
  • esoteric,
  • invisible,
  • close,
  • clouded,
  • unrevealed,
  • shadowy,
  • mysterious,
  • unexposed,
  • hermetic,
  • occult,
  • unknown,
  • abstruse,
  • Screened,
  • undisclosed,
  • secluded,
  • cryptic.
  •hush-hush (adjective)
  • classified,
  • restricted.
  •secret (adjective)
  • deep,
  • strange,
  • unfrequented,
  • unenlightened,
  • unintelligible,
  • out-of-the-way,
  • unseen,
  • reticent,
  • backdoor,
  • unpublished,
  • arcane,
  • ambiguous,
  • retired,
  • enigmatical.
  •ulterior (adjective)
  • implied,
  • Undivulged.
  •undercover (adjective)
  • creep,
  • surreptitious,
  • furtive,
  • on the qt,
  • hush-hush,
  • stealthy,
  • concealed,
  • underground,
  • stealth,
  • covert,
  • private,
  • hole-and-corner,
  • clandestine,
  • under wraps,
  • intelligence,
  • confidential,
  • sub-rosa,
  • underneath,
  • hidden,
  • underhand.

• adv

  •within (adverb)
  • inside.

• adv.

  •clandestinely (adverb)
  • un observed,
  • un-observed.
  •covertly (adverb)
  • furtively,
  • slyly,
  • on the sly,
  • in camera,
  • privately,
  • wildcat,
  • surreptitiously.

• Other synonyms:

  •
  • covertly,
  • clandestinely.
  •
  • secretly.
  •camouflaged
  • incognito.

Antonyms for Under cover:

• adj.

  • clandestine
    truthful, aboveboard, forthright.
  • covert
    candid, honest, overt, unconcealed, frank.
  • disguised
    bare, revealed, uncovered, unmasked, recognizable.
  • hidden
    exposed, seen, showing, Exhibited, out.
  • hush-hush
    Told.
  • secret
    explicit, clear, defined.
  • undercover
    public, known, open.

• adv.

  • covertly
    candidly, openly, Overtly, frankly, honestly, publicly.
  • inside
    exterior, outside.