epochal

adjective

ep·​och·​al ˈe-pə-kəl How to pronounce epochal (audio)
ˈe-ˌpä-kəl
1
: of or relating to an epoch
2
: uniquely or highly significant : momentous
during his three epochal years in the assemblyC. G. Bowers
also : unparalleled
epochal stupidity
epochally adverb

Examples of epochal in a Sentence

Recent Examples on the Web
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But China in 2025 is suffering the consequences of a Xi era that’s talked a great game of epochal change but achieved little. William Pesek, Forbes.com, 15 Aug. 2025 With its endlessly quotable teen slang, closet-envy fashion, and pop culture references, the film remains an epochal '90s movie that hasn't lost a stitch of charm or relevance. Danny Horn, EW.com, 19 July 2025 This movie was meant to be DC’s epochal Avengers-like moment. Tim Grierson, Vulture, 11 July 2025 What’s arguably even more remarkable is that unless something changes very soon, the humans making that epochal discovery might not be NASA and the American space scientists who power it. Adam Frank, The Atlantic, 4 July 2025 See All Example Sentences for epochal

Word History

First Known Use

1685, in the meaning defined at sense 1

Time Traveler
The first known use of epochal was in 1685

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Cite this Entry

“Epochal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/epochal. Accessed 8 Sep. 2025.

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