undisclosed Synonyms

unrevealed not disclosed uncharted unavowed unattested unannounced top secret such and such unsigned out of view hush-hush unexposed unnamed unidentified unspoken unclaimed unconfessed unvoiced untravelled untracked unreported unreleased unpublished unexpressed unexplored undivulged undiscovered undesignated under wraps undeclared unsaid untold invisible intimate innominate incognito imperceivable hidden hermetical covert confidential concealed classified clandestine anonymous latent mysterious obscure unknown underlying