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
Throughout Buehler’s first season away from the organization, he’s seen clips of momentous occasions; among them, the ring ceremony at their home opener, and Clayton Kershaw’s 3,000th strikeout.
—
Gabrielle Starr, Boston Herald, 25 July 2025
This transformation represented a momentous development in world politics: At least some portion of the legitimacy of a state’s control was now realized through its relationships and capacity to keep the peace, rather than resting solely on its ability to use force.
—Andrew Latham, The Conversation, 16 July 2025
The momentous changes accomplished by Haussmannization were equaled, especially in the latter years of the century, by a dedication to the pleasures of bourgeois life in Paris.
—Jennifer Dasal
july 16, Literary Hub, 16 July 2025
Following their momentous reunion tour kick-off, Oasis has stormed back to No. 1 on the U.K.’s Official Albums Chart with compilation Time Flies… 1994-2009 .
—Thomas Smith, Billboard, 12 July 2025
See All Example Sentences for momentous
Gabrielle Starr, Boston Herald, 25 July 2025
This transformation represented a momentous development in world politics: At least some portion of the legitimacy of a state’s control was now realized through its relationships and capacity to keep the peace, rather than resting solely on its ability to use force.
—Andrew Latham, The Conversation, 16 July 2025
The momentous changes accomplished by Haussmannization were equaled, especially in the latter years of the century, by a dedication to the pleasures of bourgeois life in Paris.
—Jennifer Dasal
july 16, Literary Hub, 16 July 2025
Following their momentous reunion tour kick-off, Oasis has stormed back to No. 1 on the U.K.’s Official Albums Chart with compilation Time Flies… 1994-2009 .
—Thomas Smith, Billboard, 12 July 2025
See All Example Sentences for momentous
Recent Examples of Synonyms for momentous
Adjective
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That announcement largely cleared the field of major potential challengers to Rogers.—
Paul Egan,
Freep.com,
27 July 2025
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In 1947: President Harry S. Truman signed the National Security Act 1947, a major piece of legislation that restructured many of the country’s military and intelligence institutions.—
AZCentral.com,
AZCentral.com,
27 July 2025
Adjective
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The single most important step in managing fungus gnats is altering the environment within houseplant containers.—
Kim Toscano,
Southern Living,
30 July 2025
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Here are some important factors to consider: Availability: Not all providers cover every part of Austin.—
Kara McGinley,
USA Today,
30 July 2025
Adjective
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In fact, McIntyre also suffered a significant singles loss to Damian Priest at Saturday Night’s Main Event in what has been a running theme for the Scottish superstar.—
Blake Oestriecher,
Forbes.com,
3 Aug. 2025
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Seismologists will continue monitoring the region for aftershocks, though significant follow-up tremors are unlikely given the earthquake's small magnitude.—
Adeola Adeosun,
MSNBC Newsweek,
3 Aug. 2025
Adjective
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The city of Miami wants to give the historic Olympia Theater to a public charter school known as SLAM, which stands for Sports Leadership Arts Management.—
Carl David Goette-Luciak,
Miami Herald,
23 July 2025
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At least 135 people were killed in Texas during the historic July 4 flooding, more than 100 of them in Kerr County where children’s camps and RV parks sat on the banks of the Guadalupe.—
Shimon Prokupecz,
CNN Money,
23 July 2025
Adjective
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Resolution said the site has the potential to become one of America's biggest copper mines.—
Debra Utacia Krol,
AZCentral.com,
30 July 2025
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The Queen City might seem like a big small town to people who grew up here.—
Haadiza Ogwude,
The Enquirer,
30 July 2025
Cite this Entry
“Momentous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/momentous. Accessed 6 Aug. 2025.
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