Adjectives

(s)divinatory, mantic, sibylline, sibyllic, vatic, vaticalresembling or characteristic of a prophet or prophecy“the high priest's divinatory pronouncement”, “mantic powers”, “a kind of sibylline book with ready and infallible answers to questions”
(s)cabalistic, kabbalistic, qabalistic, cryptic, cryptical, sibyllinehaving a secret or hidden meaning“cabalistic symbols engraved in stone”, “cryptic writings”, “thoroughly sibylline in most of his pronouncements” (John Gunther)