| Main Entry: | undercover |
| Part of Speech: | adjective |
| Definition: | secret, spy |
Synonyms: |
clandestine, concealed, confidential, covert, creep, furtive, hidden, hole-and-corner, hush-hush, incognito*, intelligence, on the QT, private, stealth, stealthy, sub-rosa, surreptitious, under wraps, underground, underhand, underneath |
Antonyms: |
known, open, public |
| Main Entry: | clandestine |
| Part of Speech: | adjective |
| Definition: | secret, sly |
Synonyms: |
artful, cloak-and-dagger, closet, concealed, covert, foxy, fraudulent, furtive, hidden, hush-hush, illegitimate, illicit, in holes and corners, on the Q. T., on the quiet, private, sneaky, stealthy, surreptitious, under wraps, under-the-counter, undercover, underground, underhand |
Antonyms: |
aboveboard, forthright, open, truthful |
| Main Entry: | covert |
| Part of Speech: | adjective |
| Definition: | clandestine, underhanded |
Synonyms: |
QT, buried, camouflaged, cloaked, concealed, disguised, dissembled, furtive, hidden, hush-hush, incog, incognito, masked, obscured, private, privy, secret, shrouded, stealthy, sub rosa, surreptitious, ulterior, under wraps, under-the-table, undercover, underhand, unsuspected, veiled |
| Notes: | covert (concealed, covered, hidden) is the opposite of overt (apparent, open to view, plain, public) |
Antonyms: |
aboveboard, candid, frank, honest, open, overt, public, unconcealed |
| Main Entry: | covertly |
| Part of Speech: | adverb |
| Definition: | clandestine, underhandedly |
Synonyms: |
by stealth, clandestinely, furtively, hush-hush, in camera, in holes and corners, on the QT, on the quiet, on the sly, privately, secretly, slyly, stealthily, sub rosa, surreptitiously, under wraps, undercover, wildcat |
Antonyms: |
candidly, frankly, honestly, openly, overtly, publicly |
| Main Entry: | disguised |
| Part of Speech: | adjective |
| Definition: | unrecognizable |
Synonyms: |
camouflaged, changed, cloaked, covered, covert, fake, false, feigned, hidden, incog, masked, pretend, undercover |
Antonyms: |
bare, open, recognizable, revealed, uncovered, unmasked |
| Main Entry: | furtive |
| Part of Speech: | adjective |
| Definition: | sneaky, secretive |
Synonyms: |
artful, calculating, cautious, circumspect, clandestine, cloaked, conspiratorial, covert, crafty*, creepy*, cunning, disguised, elusive, evasive, foxy, guileful, hidden, hush-hush, insidious, masked, scheming, shifty, skulking, slinking, sly, stealthy, sub-rosa, surreptitious, tricky*, under wraps, under-the-table, undercover, underhand, underhanded, wily |
Antonyms: |
aboveboard, forthright, honest, open, truthful |
| Main Entry: | hidden |
| Part of Speech: | adjective |
| Definition: | unseen, secret |
Synonyms: |
QT, abstruse, buried, clandestine, cloaked, close, clouded, concealed, covered, covert, cryptic, dark, disguised, eclipsed, esoteric, hermetic, hermetical, imperceivable, in the dark, indiscernible, invisible, latent, masked, mysterious, mystic, mystical, obscure, occult, out of view, private, recondite, screened, secluded, sequestered, shadowy, shrouded, surreptitious, ulterior, undercover, underground, undetected, undisclosed, unexposed, unknown, unrevealed, veiled, withheld |
Antonyms: |
bare, exhibited, exposed, open, out, seen, showing, uncovered |
| Main Entry: | hush-hush |
| Part of Speech: | adjective |
| Definition: | secret |
Synonyms: |
clandestine, classified, closet, confidential, covert, dark, private, restricted, sub-rosa, surreptitious, under-the-table, undercover |
Antonyms: |
known, public, revealed, told |
| Main Entry: | secret |
| Part of Speech: | adjective |
| Definition: | hidden, unrevealed |
Synonyms: |
abstruse, ambiguous, arcane, backdoor, camouflaged, classified, cloak-and-dagger, close, closet, clouded, conspiratorial, covered, covert, cryptic, dark, deep, disguised, enigmatical, esoteric, furtive, hush-hush, mysterious, mystic, mystical, obscure, occult, on the QT, out-of-the-way, private, recondite, reticent, retired, secluded, shrouded, strange, under wraps, undercover, underground, undisclosed, unenlightened, unfrequented, unintelligible, unknown, unpublished, unseen, veiled |
Antonyms: |
clear, defined, explicit, forthright, honest, open, public, revealed, unconcealed |
| Main Entry: | secretive |
| Part of Speech: | adjective |
| Definition: | uncommunicative |
Synonyms: |
backstairs, buttoned up, cagey, clammed up, close, close-mouthed, covert, cryptic, enigmatic, feline, furtive, hushed, in chambers, in privacy, in private, in the background, in the dark, on the QT, reserved, reticent, silent, taciturn, tight-lipped, undercover, unforthcoming, withdrawn, zipped |
Antonyms: |
communicative, forthright, honest, open |