Definition of "sibylline" [sib•yl•line]

• Coming from, characteristic of, or relating to a sibyl. (adjective)
• Prophetic; oracular. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Aventine erected on the cave of the Sibyl and communicating with the profound and sacred breath; taverns where the tables were almost tripods, and where was drunk what Ennius calls the sibylline wine."
• "The cabarets of the Faubourg Saint-Antoine resemble those taverns of Mont Aventine erected on the cave of the Sibyl and communicating with the profound and sacred breath; taverns where the tables were almost tripods, and where was drunk what Ennius calls the sibylline wine."
• "She has a kind of sibylline intuition and the right to be irrationally"