1. (imp. & p. p.) of Conceal.

2. (a.) Hidden; kept from sight; secreted.

abstruse arcane beclouded behind the curtain behind the scenes blind buried cabalistic camouflaged censored classified close closed clouded covered covert cryptic dark disguised eclipsed enigmatic esoteric guarded hermetic hid hidden hush-hush imperceptible in a cloud in a fog in eclipse in purdah in the wings incommunicado indiscernible insensible invisible latent mysterious obfuscated obscure obscured occult out of sight privy recondite restricted secluded secluse secret sequestered shrouded sightless smothered stifled submerged suppressed top secret ulterior unapparent unbeheld unbeholdable unbreatheable under an eclipse under cover under house arrest under security under wraps underground undiscernible undisclosable undisclosed undivulgable undivulged unknown unnoticed unobserved unperceivable unperceived unrealized unrevealable unrevealed unseeable unseen unspoken untellable untold unutterable unuttered unviewed unwhisperable unwitnessed viewless wrapped in clouds