Definition of Sibylline

having a secret meaning

Examples of Sibylline in a sentence

It took several historians to understand the sibylline meaning of the ancient scroll.  🔊

Although the sibylline book was meant to have a secret meaning, the code was cracked long ago.  🔊

Sibylline messages were passed between the secret spies.  🔊

Cryptic and sibylline, the scientists have not figured out the what the mysterious drawings on the cave wall mean.  🔊

Many believe that the sibylline crop circles in the middle of fields are secret messages from aliens.  🔊

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