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
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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Geopolitical tensions – including the war in Iran – have revived fears of terrorism and instability.—
Nathan Diller,
USA Today,
23 Mar. 2026
-
The new orders have added to fears that Israel is seeking to essentially cut off swaths of southern Lebanon from the rest of the country.—
Arkansas Online,
Arkansas Online,
23 Mar. 2026
Noun
-
Underwood and his players downplayed their concerns about playing Houston in its home city.—
Colleen Kane,
Chicago Tribune,
26 Mar. 2026
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Hitting was a major concern last regular season for the Rangers, who got middling production in terms of home runs (18th) and RBIs (19th) and struggled to consistently get on base, ranking 26th in batting average and OBP.—
Lawrence Dow,
Fort Worth Star-Telegram,
26 Mar. 2026
Noun
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For others, like Swarthout, that means pushing through anxiety to keep long-standing plans.—
Nathan Diller,
USA Today,
23 Mar. 2026
-
Teenagers with difficulty accessing their outpatient mental health care come to the ED in crisis, with intensifying depression or anxiety.—
Dr. Lauren Palladino,
Hartford Courant,
22 Mar. 2026
Noun
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Guests also have access to a private sauna, complete with essential oils to help melt your worries away.—
Nicole Kliest,
Vogue,
19 Mar. 2026
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My worry was whether Annie really wanted to be associated with my little book.—
Meredith Maran,
Los Angeles Times,
19 Mar. 2026
Noun
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Polling suggests unease about the dramatic way Trump has imposed the levies.—
ABC News,
ABC News,
19 Mar. 2026
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With growing unease in the US about the war and its economic impact on ordinary citizens, Trump has been forced to change tack in recent days.—
The Week UK,
TheWeek,
16 Mar. 2026
Cite this Entry
“Perturbation.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/perturbation. Accessed 26 Mar. 2026.
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