secret

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-ofthe-way private recondite reticent retired secluded shrouded strange undercover underground under wraps undisclosed unenlightened unfrequented unintelligible unknown unpublished unseen veiled

Antonyms: clear defined explicit forthright honest open public revealed unconcealed

Synonyms: backdoor backstairs camouflaged classified close confidential covert cryptic discreet disguised dissembled dissimulated furtive hush-hush in ambush incognito inside restricted secretive sly sneak sneaky stealthy sub-rosa surreptitious top secret unacknowledged under false pretense underhanded underthe-table

Antonyms: aboveboard known legal legitimate public

Synonyms: cipher classified information code confidence confidential information enigma formula key magic number mystery occult oracle password privileged information puzzle skeleton in cupboard unknown

Antonyms: known public knowledge revelation