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
Don't let it get lost in the shuffle of all the momentous days since.
—
Bill Goodykoontz, AZCentral.com, 6 Jan. 2026
Most athletes train for four long years in the hopes of hitting their peak performance on the right day, at just the right time, for a few momentous seconds or minutes.
—Alice Park, Time, 5 Jan. 2026
This is a momentous time when the geopolitical plates of the world seem to be shifting and realigning.
—Elena Giuliano, NBC news, 5 Jan. 2026
Discovery heads into 2026 with a Netflix deal in hand and Paramount Skydance pounding at the door in a high stakes takeover battle with momentous consequences for TV, film, theatrical exhibition and streaming.
—Dominic Patten, Deadline, 3 Jan. 2026
See All Example Sentences for momentous
Bill Goodykoontz, AZCentral.com, 6 Jan. 2026
Most athletes train for four long years in the hopes of hitting their peak performance on the right day, at just the right time, for a few momentous seconds or minutes.
—Alice Park, Time, 5 Jan. 2026
This is a momentous time when the geopolitical plates of the world seem to be shifting and realigning.
—Elena Giuliano, NBC news, 5 Jan. 2026
Discovery heads into 2026 with a Netflix deal in hand and Paramount Skydance pounding at the door in a high stakes takeover battle with momentous consequences for TV, film, theatrical exhibition and streaming.
—Dominic Patten, Deadline, 3 Jan. 2026
See All Example Sentences for momentous
Recent Examples of Synonyms for momentous
Adjective
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The current phase expands participation to additional countries and concentrates on issues such as prevention of major equipment failures, safety classification of systems, and scenarios involving loss of external power supplies.—
Prabhat Ranjan Mishra,
Interesting Engineering,
23 Jan. 2026
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While Aspen’s footprint is fixed, Deer Valley is still expanding, creating new ski-in/ski-out neighborhoods and appealing to buyers who value convenience and proximity to a major international airport.—
Roger Sands,
Forbes.com,
23 Jan. 2026
Adjective
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Metinvest considers human capital as important as advanced technologies.—
CBS News,
CBS News,
23 Jan. 2026
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When privacy is important, there’s a physical rotating lens cover that can offer an extra layer of security between meetings or streaming sessions.—
Mark Sparrow,
Forbes.com,
23 Jan. 2026
Adjective
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An Australian study of advanced brain images found significant alterations even among people who had already recovered from mild infections — a possible explanation for cognitive deficits that may persist for years.—
Stephanie Armour,
CBS News,
27 Jan. 2026
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The burial ground dates back to a significant time in English history, when regional kingdoms started to form and consolidate power.—
Andrea Margolis,
FOXNews.com,
27 Jan. 2026
Adjective
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The deep freeze that changed Texas The February 2021 winter storm brought a historic arctic outbreak across Texas, with multiple rounds of snow and days of sustained subfreezing temperatures.—
Sergio Candido,
CBS News,
25 Jan. 2026
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McKee attended Catholic high school in Zanesville, a historic Ohio city about 55 miles east of the capital, according to the Diocese of Columbus.—
Arkansas Online,
Arkansas Online,
24 Jan. 2026
Adjective
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Bulletin board member Steve Fetter stated that the rise of ‘unregulated AI tools’ poses a big threat to human survival in the present times.—
Atharva Gosavi,
Interesting Engineering,
28 Jan. 2026
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More than 8,000 volunteers are with the program so far, but leaders have a goal of growing Phambassadors to at least 10,000 people before the year's biggest events.—
Nikki DeMentri,
CBS News,
28 Jan. 2026
Cite this Entry
“Momentous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/momentous. Accessed 30 Jan. 2026.
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