MOMENTOUS Synonyms: 74 Similar and Opposite Words

momentous

adjective

mō-ˈmen-təs

Definition of momentous

as in major

having great meaning or lasting effect a momentous occasion that will go down in the history books

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Example Sentences

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Recent Examples of momentous 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, 28 Sep. 2026 Yes, Zodiac is a momentous movie, a masterpiece, and Unabomber is not. — Bilge Ebiri, Vulture, 25 Sep. 2026 To become, in other words, the hero that’s needed to turn this momentous struggle around. — Theater Critic, Los Angeles Times, 17 Sep. 2026 Observers praised the Armani Group for the momentous decision, and see Vitale’s expertise and design prowess as beneficial. — Luisa Zargani, Footwear News, 16 Sep. 2026 See All Example Sentences for momentous

Recent Examples of Synonyms for momentous

Adjective

The Category 3 storm has grown into a major hurricane, the first of an unusually quiet Atlantic season, and is expected to make landfall Friday night.

— Arkansas Online, Arkansas Online, 10 Oct. 2026
Most major mergers are consummated after executives have dedicated months to quietly drafting detailed operational plans and organizational hierarchies.

— Meg James, Los Angeles Times, 9 Oct. 2026

Definition of major

Adjective

However, the Georgia program remains an important step in establishing how the technology will work within real railway operations.

— Kaif Shaikh, Interesting Engineering, 11 Oct. 2026
Between Fletcher’s corn dogs, some Deep Fried Fat, Texas/OU at the Texas State Fair remains in the top five of college sporting events, and this version of a rivalry that is so important to this region lived up to its stature.

— Mac Engel October 10, Fort Worth Star-Telegram, 11 Oct. 2026

Definition of important

Adjective

In addition, surprise guests — look out for a festival favorite that won a significant award at Cannes — are likely to be in the mix.

— Damon Wise, Deadline, 10 Oct. 2026
That sense of community is also central to producer Chris Ferguson, whose Oddfellows banner has become a significant force in Vancouver’s independent film scene.

— Katherine Brodsky, Variety, 9 Oct. 2026

Definition of significant

Adjective

The series follows the Canadian team’s historic run to the World Cup final, where they were ultimately toppled by host country England, going down 33-13 in front of a sellout crowd of 82,000 at Twickenham Stadium in South West London.

— Max Goldbart, Deadline, 7 Oct. 2026
America was shoddy caulk oozing from a vinyl arc in a historic heatwave.

— Anna Kornbluh, ARTnews.com, 7 Oct. 2026

Definition of historic

Adjective

Isaias was expected to miss the oil industry's biggest hubs along the Gulf Coast, but fuel prices could rise if power outages shut down refineries for processing crude, industry experts said.

— Arkansas Online, Arkansas Online, 10 Oct. 2026
Over the last two years, no Spanish company has helped drive Spanish content onto the world stage more than Movistar Plus, the biggest Spanish pay TV/SVOD operator.

— John Hopewell, Variety, 10 Oct. 2026