EPOCHAL Synonyms: 38 Similar and Opposite Words

epochal

adjective

Definition of epochal

as in momentous

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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.

Recent Examples of epochal But the possibility of an epochal discovery that radically changes our understanding of the universe’s history and solves one of the greatest mysteries in modern astrophysics is too alluring to ignore. — Jonathan O'Callaghan, Scientific American, 4 June 2026 Its demographics have also undergone an epochal shift. — Rhea Mogul, CNN Money, 7 Apr. 2026 These are huge, epochal changes for older Americans that have happened in just the past 15 years. — Ken Stern, USA Today, 28 Feb. 2026 In a city willing to displace a community garden or a newsstand to claw back a few extra feet, the Armory’s yawning, epochal emptiness seems like poking through your medicine cabinet and finding an alternate universe behind it. — Justin Davidson, Curbed, 10 Feb. 2026 See All Example Sentences for epochal

Recent Examples of Synonyms for epochal

Adjective

There, it is made plain that the Atlas marked a momentous shift in the epistemology of the search, one that might already be termed algorithmic.

— Artforum, Artforum, 28 Sep. 2026
Yes, Zodiac is a momentous movie, a masterpiece, and Unabomber is not.

— Bilge Ebiri, Vulture, 25 Sep. 2026

Definition of momentous

Adjective

This call, the last time the founders would address their company, was an earthshaking moment for a workplace whose leaders inspired so much loyalty that several employees shared matching tattoos with Olguin.

— Reis Thebault, Washington Post, 19 July 2023
It also should be said that the $85 million value of the missing parts matches the price to procure one F-35A fighter—obviously an important sum, but not an earthshaking loss.

— Sébastien Roblin, Popular Mechanics, 8 June 2023

Definition of earthshaking

Adjective

And that merely seven months before a fateful presidential election which has the far right leading polls.

— Callum McLennan, Variety, 25 Sep. 2026
But his voice tyrannically resounds with sadistic orders and conservative cultural commentary during the second-act flashback scene, in which a fateful day on the set of the show changes the lives of Ronika and Blair.

— Theater Critic, Los Angeles Times, 23 Sep. 2026

Definition of fateful

Adjective

But in the meantime, before all these cosmic, life-and-death questions can be answered, this episode of Lanterns makes for a meaningful memorial to a deeply imperfect hero.

— Siddhant Adlakha, Vulture, 21 Sep. 2026
Decisions about traffic signals, speed limits and congestion solutions often come with life-and-death implications.

— Bryan Mistele, Forbes.com, 10 Sep. 2026

Definition of life-and-death

Adjective

That was crucial, as cockpit doors are typically locked to prevent hijackings.

— Arkansas Online, Arkansas Online, 2 Oct. 2026
Berkshire Hathaway held a major GM stake when Barra became CEO, and Buffett delivered a crucial vote of confidence in her leadership amid the 2014 recall crisis.

— Alyson Shontell, Fortune, 2 Oct. 2026

Definition of crucial

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epoch

epochal

epochs

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“Epochal.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/epochal. Accessed 7 Oct. 2026.

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Synonyms of epochal

adjective

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