4
secret(adjective, unknown, hidden, clandestine, undisclosed)
4
secretively(adverb, close, hideaway, arcane, stealth)
4
surreptitiously(adverb, close, hideaway, arcane, stealth)
3
anonym
3
covert(adjective, secret, hidden, clandestine, underhanded)
3
on the sly(expression, idiom, adverb, furtively)
3
private(adjective, secret, hidden, spy, clandestine)
3
under cover(expression, adverb, secret, spy, covert)
2
innominate
2
masked(adjective, disguise)
2
X(strange, new, remote, unknown, undisclosed)
2
bearding
2
clandestine(secret, hidden, spy, underground, undisclosed)
2
closet(clandestine, underground, undisclosed)
2
confidential(adjective, secret, restricted, hidden, spy)
2
furtive(adjective, close, secret, hidden, spy)
2
masquerading(adjective, disguise)
2
name
2
namelessness
2
pseudonym(noun, name, informal)
11 years ago|13k views|share |citing 
APASmart Define. (2015). incognito thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/incognito/thesaurus/synonyms
ChicagoSmart Define. 2015. "incognito thesaurus" https://smartdefine.org/incognito/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, incognito thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/incognito/thesaurus/synonyms>.
MLASmart Define. "incognito thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/incognito/thesaurus/synonyms>