hidden synonyms

private dark deep unknown isolated buried underground withdrawn invisible sealed obscure concealed dim suppressed inward latent unseen disguised masked shadowy covert puzzling opaque inert secluded clouded veiled inexplicable undercover occult undisclosed impenetrable subterranean unintelligible undetected inscrutable arcane camouflaged unsuspected imperceptible unobserved cloaked illegible underhand sequestered hermetic cloistered recondite out of sight in darkness clandestine surreptitious indiscernible unapparent out of view unrevealed show secret

magic mysterious cryptic abstruse symbolical