1
as in floods
a great flow of water or of something that overwhelms
an ancient cataclysm that may have been the basis for the Flood described in the Bible
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
2
as in disasters
a sudden violent event that brings about great loss or destruction
the earthquake that struck Lisbon in 1755, killing 30,000 people, was one of the greatest cataclysms ever recorded
Synonyms & Similar Words
Antonyms & Near Antonyms
3
as in upheavals
a violent disturbance (as of the political or social order)
a social cataclysm that gave rise to a new world order
Synonyms & Similar Words
Example Sentences
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Recent Examples of cataclysms
And star-formation will continue for trillions of years, providing new lights in the sky and new chances for cataclysms like supernovae, kilonovae, and tidal disruption events.
—
Big Think, 31 Mar. 2026
In the early 2000s, scientists first saw these conspicuous cataclysms, which can shine much longer and be more than 10 times brighter than a normal supernova.
—Joseph Howlett, Scientific American, 11 Mar. 2026
What has a snail to hope for, faced with so many potential cataclysms?
—Literary Hub, 23 Feb. 2026
At the universe's grandest scales, galaxy clusters collide in slow-motion cataclysms, leaving behind immense, ghostly arcs — vast ribbons of diffuse radio emissions that can stretch across millions of light-years.
—Sharmila Kuthunur, Space.com, 21 Nov. 2025
Big Think, 31 Mar. 2026
In the early 2000s, scientists first saw these conspicuous cataclysms, which can shine much longer and be more than 10 times brighter than a normal supernova.
—Joseph Howlett, Scientific American, 11 Mar. 2026
What has a snail to hope for, faced with so many potential cataclysms?
—Literary Hub, 23 Feb. 2026
At the universe's grandest scales, galaxy clusters collide in slow-motion cataclysms, leaving behind immense, ghostly arcs — vast ribbons of diffuse radio emissions that can stretch across millions of light-years.
—Sharmila Kuthunur, Space.com, 21 Nov. 2025
Recent Examples of Synonyms for cataclysms
Noun
-
When heavy rain occurs, there is a potential for flooding, particularly in areas that are low-lying or prone to floods.—
KANSAS CITY STAR WEATHER BOT,
Kansas City Star,
2 Apr. 2026
-
The delays affected a range of disaster-response functions, including housing inspections, temporary sheltering and crisis counseling, and slowed the distribution of aid tied to major events such as the July 2025 Texas floods and Hurricane Helene.—
Nicole Sganga,
CBS News,
1 Apr. 2026
Noun
-
At least 844 people died in what was one of the worst maritime disasters in American history.—
Encyclopedia Britannica,
Encyclopedia Britannica,
2 Apr. 2026
-
All of these downtowns are traffic disasters.—
Sun Sentinel Editorial Board,
Sun Sentinel,
2 Apr. 2026
Noun
-
Right now, marketers are still trying to get a read on how economic conditions may shake out, and there won’t be much clarity in the ad market until budgets are registered—a process that itself will be complicated by the ongoing geopolitical upheavals.—
Anthony Crupi,
Sportico.com,
3 Apr. 2026
-
During the major social upheavals of 2011 and 2019, students adopted a confrontational stance against the political and business elite to demand systemic reforms.—
ABC News,
ABC News,
30 Mar. 2026
Noun
-
Excessive rain caused torrents of water to wash out homes, damage roads, and threaten to burst a dam, sparking an emergency evacuation of thousands in Oahu on March 20.—
KiMi Robinson,
USA Today,
23 Mar. 2026
-
Lightning made the sky as bright as day, the thunder was a continuous crash, and torrents of rain poured down.—
Doris DeCleene,
Outdoor Life,
25 Feb. 2026
Noun
-
In 1941, Japan’s Pearl Harbor surprise attack triggered a nearly 2-year chain of American military catastrophes.—
Gil Troy,
New York Daily News,
29 Mar. 2026
-
But the effects on Qatar’s economy and global energy markets were profound, offering a glimpse of the catastrophes that might follow a broader Iranian military campaign against energy facilities across the Persian Gulf.—
Shane Harris,
The Atlantic,
26 Mar. 2026
Noun
-
It is estimated that there are 500,000 detectable earthquakes in the world each year.—
CA Earthquake Bot,
Sacbee.com,
4 Apr. 2026
-
The book gives us fresh and fascinating insight into a woman whose study of the waves from earthquakes led to a new understanding of what lies at the very center of our planet.—
Carol Sutton Lewis,
Scientific American,
3 Apr. 2026
Noun
-
Based on Thornton Wilder’s The Skin of Our Teeth, the surrealist musical follows one nuclear family across thousands of years and three apocalypses.—
Jason P. Frank,
Vulture,
10 Dec. 2025
-
And a lot of the pseudepigrapha, like the fake gospels and fake apocalypses, fill in gaps in the record that can serve latter-day, post-biblical purposes.—
JSTOR Daily,
JSTOR Daily,
16 Oct. 2025
Noun
-
Colorado went 43-119, a record that belongs in a museum exhibit beside other modern-era calamities, behind glass.—
Jenny Catlin,
New York Times,
25 Mar. 2026
-
There were intervening calamities that Walz, Ellison and Omar had nothing to do with, COVID-19 and the death of George Floyd.—
Joe Soucheray,
Twin Cities,
7 Mar. 2026
Cite this Entry
“Cataclysms.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/cataclysms. Accessed 6 Apr. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
