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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His greatest fear is summer — when warm weather could bring even larger crowds if enforcement is still ongoing.—
Los Angeles Times,
Los Angeles Times,
1 Feb. 2026
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Students without legal status couldn’t speak out without fear of deportation, and universities were rushing to determine how to implement the ruling.—
Lily Kepner,
Austin American Statesman,
1 Feb. 2026
Noun
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In the wake of Bad Bunny's halftime show selection in September, many critics raised concerns about a potential language barrier for English-language viewers.—
Edward Segarra,
USA Today,
5 Feb. 2026
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Citi noted that market positioning continues to reflect supply concerns, with oil for near-term delivery trading at a premium to later months, and skewed call option pricing showing that traders are still paying up for protection against higher prices.—
Lee Ying Shan,
CNBC,
5 Feb. 2026
Noun
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This year, anxiety over the federal government and a wavering stock market is making people less secure in their finances, causing some tenants to move in with family or friends — leaving studio and one-bedroom apartments empty.—
Andrew J. Campa,
Los Angeles Times,
1 Feb. 2026
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The nonprofit, formerly known as Sattvic Meals Foundation, aims to address hunger anxiety at community colleges.—
Anne Gelhaus,
Mercury News,
1 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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Adding to investor unease, even companies long seen as the prime beneficiaries of the AI boom are showing signs of fatigue.—
Brody Ford,
Fortune,
5 Feb. 2026
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California Democrats in Congress have stressed that the state’s elections are safe and reliable, but also started to express unease about upcoming election interference by the administration.—
Kevin Rector,
Los Angeles Times,
4 Feb. 2026
Cite this Entry
“Perturbation.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/perturbation. Accessed 7 Feb. 2026.
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