sibylline vs sibyllic

sibylline and sibyllic both are adjectives.

Word	Noun	Adjective	Verb	Adverb
sibylline	No	Yes	No	No
sibyllic	No	Yes	No	No

As adjectives, sibylline and sibyllic are synonyms defined as:

sibylline and sibyllic: resembling or characteristic of a prophet or prophecy

Other synonyms of sibylline include divinatory, mantic, vatic, vatical.

sibylline (adjective)	sibyllic (adjective)
having a secret or hidden meaning	resembling or characteristic of a prophet or prophecy
resembling or characteristic of a prophet or prophecy