as in major
having great meaning or lasting effect
a momentous occasion that will go down in the history books
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Recent Examples of momentous
The second season takes place six months later and deals with the inevitable fallout of that momentous decision.
—
ArsTechnica, 13 May 2026
College graduation is undoubtedly a momentous occasion and one to be celebrated.
—Sydney Lake, Fortune, 13 May 2026
The momentous revelation also comes as NASA readies for a potential 2026 launch its advanced Nancy Grace Roman Space telescope, which could unlock even more new worlds.
—Eric Lagatta, USA Today, 12 May 2026
Maybe Sunday’s momentous hit will be the one that sparks him.
—Jordan McPherson, Miami Herald, 12 May 2026
See All Example Sentences for momentous
ArsTechnica, 13 May 2026
College graduation is undoubtedly a momentous occasion and one to be celebrated.
—Sydney Lake, Fortune, 13 May 2026
The momentous revelation also comes as NASA readies for a potential 2026 launch its advanced Nancy Grace Roman Space telescope, which could unlock even more new worlds.
—Eric Lagatta, USA Today, 12 May 2026
Maybe Sunday’s momentous hit will be the one that sparks him.
—Jordan McPherson, Miami Herald, 12 May 2026
See All Example Sentences for momentous
Recent Examples of Synonyms for momentous
Adjective
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The Jaguars will play at Camping World Stadium in Orlando in 2027 while their home field, EverBank Stadium, undergoes major renovations.—
Scott Turick,
The Orlando Sentinel,
15 May 2026
-
James Ward During the debate, Republican Steve Hilton vowed to restart offshore oil drilling in California — a proposal that conflicts with decades of state policy shaped by major oil spills and strict coastal protections.—
James Ward,
USA Today,
15 May 2026
Adjective
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The promises made and attacks scattered like buckshot on the San Francisco soundstage all seem much less important than the numbers that show up in opinion polls between now and Election Day.—
Gustavo Arellano,
Los Angeles Times,
15 May 2026
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This is especially important for low-income communities and others who rely heavily on the shot for contraception.—
Voice of the People,
New York Daily News,
15 May 2026
Adjective
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BuzzFeed soon will make another round of significant cost cuts prior to Allen’s takeover, Peretti said in the statement.—
Meg James,
Los Angeles Times,
12 May 2026
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Those troops are still there, and significant mistrust remains a threat to peace.—
Sudarsan Raghavan,
New Yorker,
12 May 2026
Adjective
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This historic settlement reflects an institutional and fundamental cultural shift away from radical ‘gender’ ideology.—
Robert McGreevy,
FOXNews.com,
16 May 2026
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Not only is Benyamin’s graduation historic for the university, but his educational accomplishments are rare.—
Allison Kiehl,
Chicago Tribune,
16 May 2026
Adjective
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The goal, Cogan’s first in over two years, set up a winner-takes-all third period and another remarkable moment from Poulin in the biggest PWHL game of her career.—
Hailey Salvian,
New York Times,
13 May 2026
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The bill, which was supported by nurses, teachers, construction workers and service employees in Connecticut, is one of the biggest victories for organized labor in the state in recent years.—
Andrew Brown,
Hartford Courant,
12 May 2026
Cite this Entry
“Momentous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/momentous. Accessed 17 May. 2026.
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