eonian

/iːˈoʊniən/
adjective
  1. Lasting for an extremely long time; eternal or seemingly endless.
    • She felt an eonian patience as she waited for the results.
    • The mountains have an eonian quality, unchanged for millennia.
    • The desert landscape seemed eonian in its stillness.
What does "eonian" mean? | whatsthatwordmean | whatsthatwordmean