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 And this being France’s national flag carrier, meal time is its own momentous event. — Jessica Puckett, Condé Nast Traveler, 1 Aug. 2026 And such momentous changes as bringing back Eric Bieniemy as offensive coordinator and the Chiefs signing Super Bowl MVP Kenneth Walker III to revive their running game heralded Reid’s recognition of the moment. — Vahe Gregorian july 31, Kansas City Star, 31 July 2026 Jillian joined Patrick for the momentous night, and the two posed for photos in matching black outfits. — Caroline Blair, PEOPLE, 31 July 2026 The sleepy new Strokes album Reality Awaits landed Friday, less than a week before the 25th anniversary of the band’s momentous 2001 debut, Is This It. — Craig Jenkins, Vulture, 28 July 2026 See All Example Sentences for momentous

Recent Examples of Synonyms for momentous

Adjective

Russia, another major source of fuel, has been knocked offline by another war, the conflict with Ukraine.

— David Goldman, CNN Money, 22 Aug. 2026
Works by major international artists (Tschabalala Self, Francesco Clemente, Chantal Joffe) sit alongside Greek artists (Vasilis Papageorgiou, Kostas Paniaras, Sofia Mitsola) and commissions created on site, scattered through the hotel and grounds.

— Condé Nast, Condé Nast Traveler, 22 Aug. 2026

Definition of major

Adjective

But before that, the team will hold what is perhaps their most important practice of the fall.

— Connor Riley, AJC.com, 22 Aug. 2026
Originally constructed in the 1860s to house two battalions of the British Army, Chelsea Barracks served as an important military base for more than 140 years before being decommissioned in 2008.

— Nick Scott, Robb Report, 22 Aug. 2026

Definition of important

Adjective

The backstory Once upon a time, there was a Spanish family blessed with a talent for finding historic buildings and transforming them into hotels that anyone who admires beauty and nature would want to visit.

— Condé Nast, Condé Nast Traveler, 20 Aug. 2026
One of Roseville's oldest and most historic structures is getting some new attention.

— James Taylor, CBS News, 20 Aug. 2026

Definition of historic

Adjective

Prosecutors revealed Davis’ admittedly big mouth had been opening to investigators since 1998 – only two years after Shakur was gunned down – in a series of secret interviews trying to minimize his own legal damage by giving information to the cops.

— Andy Rose, CNN Money, 22 Aug. 2026
Gone was the terror of wondering if the piece that was about to air was going to get big enough laughs from the live audience.

— Merrill Markoe, Deadline, 21 Aug. 2026