Hidden
/ˈhɪd(ə)n/
adjective
Located or positioned out of sight; not visually apparent.
“hidden treasure; hidden talents”
Obscure.
verb
To put (something) in a place where it will be harder to discover or out of sight.
“He hides his magazines under the bed.”
To put oneself in a place where one will be harder to find or out of sight.
Synonyms: conceal, hide away, secrete, go undercover, hide away, hide out, lie low