AEONIAN Scrabble 7 Words With Friends 9 Definition adjective of or relating to a geological eon (longer than an era). — synonyms: eonian adjective continuing forever or indefinitely. — synonyms: ageless, eonian, eternal, everlasting, perpetual, unending, unceasing See all 36 words you can make from AEONIAN → 7-letter words Words starting with A Words ending with N ← Unscramble different letters