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
-
That puts the fear of God into him.—
Jordan Hoffman,
Entertainment Weekly,
23 Feb. 2026
-
The Showtime Lakers faced those fears and overcame them.—
Los Angeles Times,
Los Angeles Times,
23 Feb. 2026
Noun
-
Our biggest concern should always be the goal.—
Jack Lang,
New York Times,
26 Feb. 2026
-
Cost-of-living concerns are driving voter preferences, with affordability emerging as a defining issue that could shape the election.—
Seema Mehta,
Los Angeles Times,
26 Feb. 2026
Noun
-
Tobacco parallels The Los Angeles trial centers on allegations made by a 20-year-old woman, Kaley, and her mother that four social media giants intentionally designed addictive platforms that hooked her as a child and led to mental health challenges, including anxiety and depression.—
Clare Duffy,
CNN Money,
22 Feb. 2026
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The lurch from confidence to anxiety has been a key reason Villa have not held their nerve in some supposedly easier fixtures.—
Jacob Tanswell,
New York Times,
22 Feb. 2026
Noun
-
While many retirees focus on market crashes or poor investment returns as their biggest worry, financial experts warn that the slow, steady rise in the cost of living may actually pose a greater danger — one that can stretch across decades and leave retirees struggling to keep up.—
Miami Herald,
Miami Herald,
26 Feb. 2026
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Hufnagel addressed those worries, saying that 2026 is focused on optimizing the footprint through sharper assortments and marketing to support full-price sell-through and sustainable long-term growth.—
Stephen Garner,
Footwear News,
26 Feb. 2026
Noun
-
As each skated and waited for their scores to post, the crowd tittered with nervous unease.—
Dana O’Neil,
CNN Money,
20 Feb. 2026
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And at that point, ushered into the floating mists of non-consensus with murmurings of political unease regarding content or intellectual befuddlement regarding style, the briefly sighted, singular beast of language vanishes from the visible landscape.—
Literary Hub,
Literary Hub,
19 Feb. 2026
Cite this Entry
“Perturbation.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/perturbation. Accessed 28 Feb. 2026.
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