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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Mothers told Fletcher of sending their children to live elsewhere for fear they will be raped in the displacement camps, a constant worry.—
Jacqueline Charles,
Miami Herald,
15 Sep. 2025
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The stock is still benefiting from having been dismissed and cheapened by prior fears of its search franchise being disrupted.—
Michael Santoli,
CNBC,
15 Sep. 2025
Noun
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The vote to approve Miran’s nomination passed 48-47, along party lines, with Democrats expressing concern about the appointment impacting the central bank’s independence.—
Siladitya Ray,
Forbes.com,
16 Sep. 2025
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Motiva is helping to eliminate this concern.—
Megan McIntyre,
Allure,
16 Sep. 2025
Noun
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Add in the possibility of more extensive – and costly – work such as bridges, crowns, extractions or implants, and the anxiety can grow even stronger.—
Daryl Austin,
USA Today,
13 Sep. 2025
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The enthusiasm around personal curriculums and independent learning might reflect modern-day anxieties.—
Harmeet Kaur,
CNN Money,
13 Sep. 2025
Noun
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The worry is that these aren’t simple, one-off glitches, but systemic flaws with the way that generative tools are designed and built, and a lack of accountability for the behavior of AI algorithms.—
Bernard Marr,
Forbes.com,
15 Sep. 2025
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Taxes at that level were essentially a blockade on commerce between the world's two largest economies, causing worries about global growth that led to negotiations that ratcheted down the tariffs being levied by both nations.—
Arkansas Online,
Arkansas Online,
14 Sep. 2025
Noun
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War games involving Russian and Belarusian troops on Monday spurred unease in Europe, which is already on edge after Russian drones entered Poland and Romania last week.—
J.D. Capelouto,
semafor.com,
15 Sep. 2025
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Pasteur himself didn’t opine on whether this might threaten existing life, but others were soon expressing unease following his breakthroughs in unlocking life’s chemical secrets.—
Thomas Moynihan,
Big Think,
15 Sep. 2025
Cite this Entry
“Perturbation.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/perturbation. Accessed 18 Sep. 2025.
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