Definitions

1. adjective

relating to or characteristic of a prophet or prophetess, especially the Sibyls of ancient Greece and Rome, who were believed to have received divine inspiration.

“The sibylline prophecies were often cryptic, leaving much to interpretation.”

2. noun

a prophet or prophetess, especially a Sibyl.

“The sibylline woman’s words were often shrouded in mystery.”

3. noun

a divine or mysterious utterance, especially one that is obscure or enigmatic.

“The sibylline message was unclear, but it hinted at a great calamity.”