sibyllic vs sibylline

sibyllic and sibylline both are adjectives.

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

As adjectives, sibyllic and sibylline are synonyms defined as:

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

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

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