Definitions

1. adjective

lasting or existing for an immeasurably long time; eternal

“The beauty of the ancient monument was an enduring, aeonian testament to the ingenuity of the past.”

2. NIL

an indefinitely long period of time

“The aeonian journey through the galaxy was filled with countless wonders and discoveries.”

3. NIL

a very long period of time in the past

“The aeonian reign of the monarch was marked by great achievements and lasting legacy.”