<adv.all> in Holland he lived incognito as a carpenter in the shipyards of the East India company [ adj ]
with your identity concealed
<adj.all>
Incognito \In*cog"ni*to\, a. or adv. [It. incognito, masc., incognita, fem., L. incognitus unknown; pref. in- not + cognitus known, p. p. of cognoscere: cf. F. incognito, fr. {It}. See {Cognition}.] 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.
'T was long ago Since gods come down incognito. --Prior.
The prince royal of Persia came thither incognito. --Tatler.
Incognito \In*cog"ni*to\, n.; pl. {Incognitos}. [See {Incognito}, a.] 1. One unknown or in disguise, or under an assumed character or name.
2. The assumption of disguise or of a feigned character; the state of being in disguise or not recognized.
His incognito was endangered. --Sir W. Scott.
Until 1990, eastern Europe was terra incognito for Jonas af Jochnick.
So, as President Reagan has said, he is traveling incognito.
They believe Rimington is performing her job just perfectly - suitably diverting attention from the real boss who remains as incognito as ever, whatever the prime minister may say.