eternity

noun

eter·​ni·​ty i-ˈtər-nə-tē How to pronounce eternity (audio)
plural eternities
Synonyms of eternitynext
1
: the quality or state of being eternal
2
: infinite time
lasting throughout eternity
3
eternities plural : age sense 3b
4
: the state after death : immortality
5
: a seemingly endless or immeasurable time
an eternity of delays

Examples of eternity in a Sentence

They believed that sinners would spend eternity in hell. We suffered through an eternity of delays during the lawsuit.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The idea of intergenerational exchange is embedded in the perspective of eternity, but the mistake is to see ecological preservation as matters of personal and political morality. Literary Hub, 21 Jan. 2026 Jeff Probst reminds Mike White of Sisyphus, the mythological king cursed to spend eternity trying, and failing, to push an enormous boulder up a steep slope. David Canfield, Vanity Fair, 20 Jan. 2026 The first ring, which Rainier proposed with, was an eternity band, alternating heirloom red rubies and diamonds from Rainier’s family. Erica Marrison, PEOPLE, 17 Jan. 2026 And like the four-minute-mile that stood as a psychological barrier for eternity, once a mental barrier is breached, the flood gates often open - more than 2000 athletes have since beaten that mark. Mike Hanlon january 16, New Atlas, 16 Jan. 2026 See All Example Sentences for eternity

Word History

Etymology

Middle English eternite, from Middle French eternité, from Latin aeternitat-, aeternitas, from aeternus

First Known Use

14th century, in the meaning defined at sense 1

Time Traveler
The first known use of eternity was in the 14th century

Browse Nearby Words

Cite this Entry

“Eternity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/eternity. Accessed 27 Jan. 2026.

Kids Definition

eternity

noun
eter·​ni·​ty i-ˈtər-nət-ē How to pronounce eternity (audio)
plural eternities
1
: the quality or state of being eternal
2
: endless time
3
: the state after death : immortality
4
: time that seems to be endless

More from Merriam-Webster on eternity

Last Updated: - Updated example sentences
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