Undercover is a related term of unrevealed.
As adjectives the difference between undercover and unrevealed
is that undercover is performed or happening in secret while unrevealed is not revealed; hidden; secret.
As a noun undercover
is a person who works.
undercover
English
Adjective
(
en adjective)
Performed or happening in secret.
Employed or engaged in spying or secret investigation.
Synonyms
* clandestine
* See also
Related terms
* cloak-and-dagger
Noun
(
en noun)
A person who works .