Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

Thesaurus

eternity

noun

Synonyms and Antonyms of eternity

1 endless time
  • the question whether the universe will end someday or continue to exist in eternity
Synonyms of eternity

everlasting, foreverness, infinity, perpetuity
Words Related to eternity

boundlessness, endlessness, interminableness, limitlessness, permanence, permanency, timelessness
Near Antonyms of eternity

ephemerality, impermanence, temporariness, transience, transitoriness
2 unending existence after death
  • a firm belief in the eternity of the soul
Synonyms of eternity

afterlife, beyond, hereafter, immortality
Words Related to eternity

afterworld, otherworld
3 a long or seemingly long period of time
  • We waited in line for tickets for an eternity.
Synonyms of eternity

aeon (or eon), age, blue moon, cycle, forever, long, months, moon
Words Related to eternity

infinity

lifetime
Near Antonyms of eternity

flash, instant, jiffy, minute, moment, second, shake, split second, trice, twinkle, twinkling, wink

microsecond, nanosecond

Learn More about eternity

  1. See words that rhyme with eternity Dictionary: Definition of eternity Spanish Central: Translation of eternity Nglish: Translation of eternity for Spanish speakers Britannica English: Translation of eternity for Arabic speakers Britannica.com: Encyclopedia article about eternity

Seen and Heard

What made you want to look up eternity? Please tell us where you read or heard it (including the quote, if possible).

show hide

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Words at Play

Ask the Editors

Word Games