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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Nearly a quarter of New Orleans residents live in poverty, and the prospect of a substantial windfall for a few hours’ work apparently outweighed any fear of getting into a car that was about to take part in a high-speed accident.—
Patrick Radden Keefe,
New Yorker,
13 Apr. 2026
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Esther says Kim had shared her fear of Terry Rose well before her disappearance.—
Peter Van Sant,
CBS News,
12 Apr. 2026
Noun
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However, boundaries have not been redrawn since the 1971 census, as successive governments delayed the process over concerns about uneven population growth.—
ABC News,
ABC News,
16 Apr. 2026
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Damaging winds and flooding remain the primary concerns for any storms that can form on Thursday.—
Ahmad Bajjey,
CBS News,
16 Apr. 2026
Noun
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Last year’s Public Service Commission flips were a blaring warning sign in a cycle dominated by voter anxiety over affordability and utility costs.—
Greg Bluestein,
AJC.com,
12 Apr. 2026
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For weeks, Hilton and Bianco have led polls while eight prominent Democrats including Swalwell split the support of liberal voters, stoking anxiety among Democrats that the party could end up shut out of the November election.—
Seema Mehta,
Los Angeles Times,
12 Apr. 2026
Noun
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Put the worry of blisters behind you once and for all, and step into spring in style with the most comfortable shoes, according to the internet.—
Stephanie Osmanski,
Better Homes & Gardens,
16 Apr. 2026
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Burritt said the upshot is that his company, as a Nippon subsidiary, is freed from worries about geopolitical uncertainty.—
Cory Schouten,
semafor.com,
16 Apr. 2026
Noun
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Yet nothing could stop the speculation and growing unease about the future of LIV Golf.—
Steve Henson,
Los Angeles Times,
17 Apr. 2026
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City’s results have begun to sow unease among Arsenal fans.—
Reuters,
NBC news,
17 Apr. 2026
Cite this Entry
“Perturbation.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/perturbation. Accessed 19 Apr. 2026.
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