incognito
adjective
[ ˌɪnkɒɡˈniːtəʊ ]
• (of a person) having one's true identity concealed.
• "in order to observe you have to be incognito"
incognito
adverb
• in a way that conceals one's true identity.
• "he is now operating incognito"
Similar:
under an assumed name,
under a false name,
with one's identity concealed,
in disguise,
under cover,
in plain clothes,
secretly,
covertly,
anonymously,
incog,
incognito
noun
• an assumed or false identity.
• "she is locked in her incognito"
Origin:
mid 17th century: from Italian, literally ‘unknown’, from Latin incognitus, from in- ‘not’ + cognitus (past participle of cognoscere ‘know’).