1. lasting for an extremely long period of time; eternal or everlasting
Usage: formal; often used in philosophical or geological contexts

Examples

• The aeonic cycles of geological change shaped the mountain ranges over millions of years.
• Ancient philosophers contemplated the aeonic nature of the universe.
• The redwood trees seemed to possess an aeonic quality, having stood for thousands of years.
• Scientists study aeonic processes that occur over vast timescales.
• The aeonic wisdom of the ages was preserved in the ancient texts.
• Glacial movements represent aeonic forces that reshape entire continents.