(of a person) having one's true identity concealed (人)隐姓埋名的(地),隐瞒身份的(地),化名的(地) [as adj.]in order to observe you have to be incognito. 你必须隐姓埋名以便观察。 [as adv.]he is now operating incognito. 他正化名工作。
(pl. -os)
an assumed or false identity 虚假身份
语源
mid 17th cent.: from Italian, literally unknown', from Latin incognitus, from in- 'not' + cognitus (past participle of cognoscere 'know')