covert

covert adjective clandestine, cloaked, concealed, covered, cryptic, cryptical, dark, delitescent, disguised, furtive, hidden, insidious, invisible, latent, muffled, mystic, mystical, nonapparent, occult, out of sight, private, screened, secluded, secret, sheltered, shrouded, sly, sneaky, stealthy, surreptitious, tacit, undercover, underhand, undisclosed, unknown, unobtrusive, unseen, unsuspected, veiled

---

See also: allusive, asylum, blind, clandestine, concealed, confidential, esoteric, evasive, furtive, hidden, impalpable, inconspicuous, indirect, latent, mysterious, personal, potential, private, privy, protection, recondite, refuge, secret, shield, sly, stealthy, surreptitious, undisclosed, unobtrusive

---

COVERT, BARON. A wife; so called, from her being under the cover or protection of her husband, baron or lord.