Eternity
Eternity noun - A long or seemingly long period of time.
Usage example: we waited in line for tickets for an eternity
Forever is a synonym for eternity in endless time topic. In some cases you can use "Forever" instead the word "Eternity" as a noun or an adverb. popular alternative
Forever
Forever noun - A long or seemingly long period of time.
Usage example: it took forever to fill out all the forms
Eternity is a synonym for forever in endless time topic. You can use "Eternity" instead a noun "Forever". popular alternative
Mutual synonyms
Related pairs
Both words in one sentence
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The short-haired Nao wished to wait for Shinta forever, and is first met in an alternate universe where Shinta has disappeared, leaving her waiting for him for all eternity.
Source: Manga / Koi Neko - If you die there, you have to stay forever, meaning she has to spend eternity as a whore to a town full of similarly cursed miners.
- He then goes on to list the numerous reasons why living forever would suck, especially if it involved being trapped with the rather horrible women in his life for all eternity as well.
Source: And Then What?
Cite this Source
Forever and Eternity. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/eternity/forever
Eternity & Forever. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/eternity/forever>.
Forever or Eternity. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/eternity/forever.
Google Ngram Viewer shows how "eternity" and "forever" have occurred on timeline