having an import not apparent to the senses nor obvious to the intelligence; beyond ordinary understanding - mysterious symbols - the mystical style of Blake - occult lore - the secret learning of the ancients • Syn: mysterious, mystic, mystical, occult, secret • Similar to: esoteric • Derivationally related forms: occult (for: occult), mystic (for: mystical), mystic (for: mystic), mystery (for: mysterious)