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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Example Sentences
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Recent Examples of perturbation
The rise of quantum sensors, which can detect delicate perturbations in the environment at the atomic level, promises even greater sensitivity and accuracy.
—
IEEE Spectrum, 16 Dec. 2024
His team also discovered that pigeon’s feathers could filter out a lot of turbulence perturbations on their own.
—Ars Technica, 27 Nov. 2024
However, perturbations from the sun's gravity will ultimately break this temporary gravitational dance, sending 2024 PT5 back to its home in the Arjuna belt.
—Tom Rogers, Newsweek, 25 Nov. 2024
Relative genotoxicity of polycyclic aromatic hydrocarbons inferred from free energy perturbation approaches.
—Nina Turner, Newsweek, 29 Oct. 2024
See all Example Sentences for perturbation 
IEEE Spectrum, 16 Dec. 2024
His team also discovered that pigeon’s feathers could filter out a lot of turbulence perturbations on their own.
—Ars Technica, 27 Nov. 2024
However, perturbations from the sun's gravity will ultimately break this temporary gravitational dance, sending 2024 PT5 back to its home in the Arjuna belt.
—Tom Rogers, Newsweek, 25 Nov. 2024
Relative genotoxicity of polycyclic aromatic hydrocarbons inferred from free energy perturbation approaches.
—Nina Turner, Newsweek, 29 Oct. 2024
See all Example Sentences for perturbation
Recent Examples of Synonyms for perturbation
Noun
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But fear of ice-cold takes never stopped us before.—
Jeff Gluck,
The Athletic,
15 Feb. 2025
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Trump’s threats have sent an icy jolt of fear through the land, and Canadian opinions have suddenly shifted on pipelines and other questions.—
Stephen Maher,
TIME,
15 Feb. 2025
Noun
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The push for tariffs may be impacting public concern about prices.—
Anthony Salvanto,
CBS News,
9 Feb. 2025
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Several House Democrats were already dissatisfied with the way social equity protections had played out for marijuana and shared Johnson’s concerns about the impact on small businesses.—
Alice Yin,
Chicago Tribune,
9 Feb. 2025
Noun
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Yes, but: Heightened anxiety amid the administration's immigration crackdown has triggered dips in school attendance nationwide.—
Alex Golden,
Axios,
11 Feb. 2025
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The headline result here is pretty clear: people who are more physically active are less likely to suffer from depression and anxiety now and in the future.—
Alex Hutchinson,
Outside Online,
9 Feb. 2025
Noun
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Eventually, optimism and relief won over fears and worries, rallying stocks.—
Yeo Boon Ping,
CNBC,
14 Feb. 2025
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Democrats have criticized the group’s reach, expressing worry that Musk has too much control over governmental operations.—
Ross O'Keefe,
Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government,
12 Feb. 2025
Noun
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The order sparked unease across the bureau as staff began to fear for their jobs, and concerns about the list becoming public have since become the subject of a lawsuit between FBI agents and the DOJ.—
Ashley Oliver,
Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government,
8 Feb. 2025
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Oakland political consultant Annie Eagan said the outstanding bill owed to her firm has become a source of growing unease.—
Jakob Rodgers,
The Mercury News,
6 Feb. 2025
Thesaurus Entries Near perturbation
Cite this Entry
“Perturbation.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/perturbation. Accessed 23 Feb. 2025.
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