adjective
secret
Synonyms: abstruse, anagogic, arcane, cabalistic, cryptic, enigmatical, esoteric, hidden, imaginary, impenetrable, inscrutable, magic, magical, metaphysical, mysterial, mysterious, mystical, necromantic, nonrational, numinous, occult, otherworldly, paranormal, preternatural, quixotic, sorcerous, spiritual, supernatural, telestic, thaumaturgic, transcendental, unaccountable, unknowable, visionary, witchlike, wizardly
adjective
secret, esoteric
Synonyms: abstruse, anagogic, arcane, cabalistic, cryptic, enigmatical, hidden, imaginary, impenetrable, inscrutable, magic, magical, metaphysical, mysterial, mysterious, necromantic, nonrational, numinous, occult, otherworldly, paranormal, preternatural, quixotic, sorcerous, spiritual, supernatural, telestic, thaumaturgic, transcendental, unaccountable, unknowable, visionary, wizardly
Antonyms: knowable, natural, palpable, undisguised