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
In the short term, the position of a satellite's orbit will remain unchanged on this reference map without any perturbation.
—
Robert Pearlman, ArsTechnica, 11 July 2025
Massively parallel genetic perturbation suggests the energetic structure of an amyloid-β transition state.
—Ian Randall, MSNBC Newsweek, 13 June 2025
Additionally, the multiplex array generates RNAs customized for various types of genetic perturbation.
—William A. Haseltine, Forbes, 24 Jan. 2025
One advantage of our technology is its attention to what control engineers call closed-loop system stability, which means that any perturbations to a normal state lead to only small and fleeting variations.
—Behnood Gholami, IEEE Spectrum, 24 Sep. 2018
See All Example Sentences for perturbation
Robert Pearlman, ArsTechnica, 11 July 2025
Massively parallel genetic perturbation suggests the energetic structure of an amyloid-β transition state.
—Ian Randall, MSNBC Newsweek, 13 June 2025
Additionally, the multiplex array generates RNAs customized for various types of genetic perturbation.
—William A. Haseltine, Forbes, 24 Jan. 2025
One advantage of our technology is its attention to what control engineers call closed-loop system stability, which means that any perturbations to a normal state lead to only small and fleeting variations.
—Behnood Gholami, IEEE Spectrum, 24 Sep. 2018
See All Example Sentences for perturbation
Recent Examples of Synonyms for perturbation
Noun
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The fear was that Jayden Daniels would be limited, that the brace on his left knee — or the knee itself — would hinder his running or his elusiveness, eliminate his quick cuts or somehow slow him down.—
Nicki Jhabvala,
New York Times,
7 Oct. 2025
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Colangelo added that, in these depictions, the fear of transness is more present than the fear of being killed.—
Mathew Rodriguez,
Them.,
7 Oct. 2025
Noun
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The Phillies entered the ninth trailing 4-1 and quickly reminded the Dodgers why their bullpen concerns are so loud.—
Fabian Ardaya,
New York Times,
7 Oct. 2025
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On the heels of Karen’s sentencing, the women gather at Gizelle’s house to commiserate, and spend the whole scene dancing between concern, empathy, and absurdity.—
Shamira Ibrahim,
Vulture,
6 Oct. 2025
Noun
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Other benefits of acupuncture were pain intensity reduction, an improvement of physical functions, and fewer anxiety symptoms.—
Ashley J. DiMella,
FOXNews.com,
4 Oct. 2025
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The stress among the friend group about their costume theme is giving me more anxiety than a haunted hayride.—
Melissa Willets,
Parents,
4 Oct. 2025
Noun
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Shanen Wright, 48, a lifelong Charleston resident who lives near CAMC Memorial, said many in the city have little worry about flooding in the face of more immediate problems, like the opioid epidemic and the decline of manufacturing and mining.—
CNN Money,
CNN Money,
5 Oct. 2025
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Rising worries During the Milken Institute Asia Summit, other experts warned that retail inflows could distort pricing, erode returns and destabilize fund structures designed for long-term investments or patient capital.—
Lee Ying Shan,
CNBC,
3 Oct. 2025
Noun
-
News of the deaths ricocheted through the prison system, spreading fear and unease.—
Jennifer Gonnerman,
New Yorker,
6 Oct. 2025
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The university acknowledged receiving messages expressing unease about the event, which was organized by the campus's chapter.—
Michael Ruiz , Stepheny Price , Preston Mizell,
FOXNews.com,
1 Oct. 2025
Cite this Entry
“Perturbation.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/perturbation. Accessed 8 Oct. 2025.
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