The definition of hidden is concealed.
Not known; unfamiliar:
Operating in a hidden or confidential manner:
Left unnamed; anonymous
Conducted in secret or through the use of subterfuge, as in a police investigation or in spying:
Find another word for incognito. In this page you can discover 22 synonyms, antonyms, idiomatic expressions, and related words for incognito, like: biscotto, disguised, hidden, camouflaged, under an assumed name, anonymous, confidentialness, unknown, secret, alias and concealed.