covert Synonyms

concealed screen secret disguised hidden cover private concealment ultraviolet woodland ulterior thicket tertiary underbrush underground undergrow undergrowth underhand underhanded underneath unseen veiled wildwood tented surrey slinking skulking sideways sidelong shrubbery shrouded shelter secretive sneaking sneaky speculum surreptitious subterrestrial subterraneous subterranean stealthy stealthful spinny spinney secrecy unsuspected thievishly undercover safe harbor unseeable