Incognito

1. (a. / adv.) Without being known; in disguise; in an assumed character, or under an assumed title; -- said esp. of great personages who sometimes adopt a disguise or an assumed character in order to avoid notice.

2. (a.) One unknown or in disguise, or under an assumed character or name.

3. (n.) The assumption of disguise or of a feigned character; the state of being in disguise or not recognized.

Thesaurus Entries

anonym, anonymity, anonymous, anonymousness, camouflage, camouflaged, closed meeting, closet, concealed, confidentiality, confidentialness, cryptonymic, cryptonymous, disguise, disguised, domino, executive session, false colors, false face, false front, guisard, guiser, impersonator, in disguise, incog, incognita, inmost, innermost, innominate, interior, intimate, inward, isolated, isolation, mask, masked, masker, masque, masquerade, masquerader, masquerading, mummer, mummery, nameless, namelessness, on the sly, personal, privacy, private, private conference, privy, protective coloration, retired, retirement, secluded, seclusion, secretly, sequestered, sequestration, smoke screen, unacknowledged, undefined, under cover, undesignated, unidentified, unknown, unnamed, unrecognizable, unrecognized, unspecified, visor, vizard, vizard mask, withdrawn, without a name