as in fear
an uneasy state of mind usually over the possibility of an anticipated misfortune or trouble
in her perturbation she kept calling her son, a freshman, to see if everything was all right at college
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Recent Examples of perturbation
But otherwise the climate, through its perturbations, has maintained conditions conducive to animal life for nearly a half-billion years.
—
Peter Brannen, Quanta Magazine, 15 Sep. 2025
Quantum machines of today are prone to errors, have a restricted size range, and are sensitive to perturbations in their surrounding environment.
—Chuck Brooks, Forbes.com, 29 Aug. 2025
To identify the quantum states of a particle, scientists need to isolate it from perturbations arising from its surroundings.
—Ameya Paleja, Interesting Engineering, 8 Aug. 2025
Post-hoc methods like Shap and LIME, though well-used, have challenges in efficacy, particularly because of the quality of explanations and the influence of perturbation on the final explanations.
—Vinay Kumar Sankarapu, Forbes, 4 Oct. 2024
See All Example Sentences for perturbation
Peter Brannen, Quanta Magazine, 15 Sep. 2025
Quantum machines of today are prone to errors, have a restricted size range, and are sensitive to perturbations in their surrounding environment.
—Chuck Brooks, Forbes.com, 29 Aug. 2025
To identify the quantum states of a particle, scientists need to isolate it from perturbations arising from its surroundings.
—Ameya Paleja, Interesting Engineering, 8 Aug. 2025
Post-hoc methods like Shap and LIME, though well-used, have challenges in efficacy, particularly because of the quality of explanations and the influence of perturbation on the final explanations.
—Vinay Kumar Sankarapu, Forbes, 4 Oct. 2024
See All Example Sentences for perturbation
Recent Examples of Synonyms for perturbation
Noun
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The killings of Good and Pretti sparked further fear and backlash.—
Los Angeles Times,
Los Angeles Times,
9 Feb. 2026
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Twelve years after an NFL game was first shown on television in a period of fear of war and triumph in war, the championship game itself was broadcast across the country for the first time.—
CBS News,
CBS News,
8 Feb. 2026
Noun
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Melissa Michelson, a political science professor at Menlo College, said the donor list signals concern among wealthy Californians about potential tax increases.—
Grace Hase,
Mercury News,
12 Feb. 2026
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These activities, conducted outside normal flight paths near El Paso International Airport, caused FAA concern about possible interference with civilian flights.—
Sujita Sinha,
Interesting Engineering,
12 Feb. 2026
Noun
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Our cousins just over the border in Wisconsin kept up a steady stream of taunts, trash-talking the Bears and causing us all a lot of anxiety as the minutes ticked by.—
Erendira Rendon,
Chicago Tribune,
8 Feb. 2026
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Experts say exercise during pregnancy and after birth can help lower anxiety, improve sleep, and boost your mood.—
Hannah Silverman,
Parents,
8 Feb. 2026
Noun
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The social media giant's guidance offset worries about its sky-high spending on artificial intelligence.—
,
CNBC,
5 Feb. 2026
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Keogh said that access is a security worry because people in the indictment include citizens of communist China, an American rival.—
Steve Patterson,
Florida Times-Union,
5 Feb. 2026
Noun
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The score hums and pulses with modern unease, making the film feel like a fever dream that happens to borrow Brontë’s names.—
Ana Gutierrez,
Austin American Statesman,
11 Feb. 2026
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The Nancy Guthrie case highlights mounting unease over how much control Nest‑ and Ring‑style devices give both tech companies and law enforcement over intimate footage from people’s homes.—
Ashley Lutz,
Fortune,
11 Feb. 2026
Cite this Entry
“Perturbation.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/perturbation. Accessed 14 Feb. 2026.
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