arcane Synonyms

involved preterhuman private profound puzzling recherche recondite secret sibylline perplexing orphic oracular literary mysterious mystic mystical mystifying obscure occult opaque supersensual supramundane little-known nonrational numinous esoterism Darker unclear uninformative top secret unknowable kafkaesque kabbalistic ultramundane unaccountable undergrow vague veiled unintelligible unfathomable back room transmundane abstruse clandestine classified complex complicated concealed covert cryptic