veil

concealed; hidden; secret, recondite, mystic, cabalistic, occult, dark; cryptic, cryptical; private, privy, in petto, auricular, clandestine, close, inviolate; tortuous., behind a screen; undercover, under an eclipse; in ambush, in hiding, in disguise; in a cloud, in a fog, in a mist, in a haze, in a dark corner; in the shade, in the dark; clouded, wrapt in clouds; invisible; buried, underground, perdu; secluded., undisclosed, untold [more]; covert (latent); mysterious (unintelligible)., irrevealable, inviolable; confidential; esoteric; not to be spoken of., obreptitious, furtive, stealthy, feline; skulking; surreptitious, underhand, hole and corner; sly (cunning). [more]; secretive, evasive; reserved, reticent, uncommunicative, buttoned up; close, close as wax; taciturn.