or e·o·ni·an

[ ee-oh-nee-uh n ]
/ iˈoʊ ni ən /


eternal; everlasting.

Origin of aeonian

1755–65; < Greek aiṓni(os) (aiṓn aeon + -ios adj. suffix) + -an Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for aeonian

  • If the days of Genesis mean indefinite periods of aeonian duration, how is the seventh day of rest to be understood?

    Creation and Its Records|B.H. Baden-Powell
  • His soul had moved amid similar evocations in some aeonian past, whence now the sand was being cleared away.

    Four Weird Tales|Algernon Blackwood
  • And, afterwards, the new spiritual state will probably be an improvement—Aeonian evolution through all the spheres.

    Psychical Miscellanea|J. Arthur Hill

British Dictionary definitions for aeonian



/ (iːˈəʊnɪən) /

adjective literary

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012