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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The construction plans have generally raised fears that the London complex could serve as a Beijing intelligence hub.—
Bonny Chu,
FOXNews.com,
14 Jan. 2026
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Several Venezuela residents told TIME that the fear of what might be discovered on their phone at a checkpoint has guided their behavior in the days since Maduro's ouster.—
Brian Bennett,
Time,
13 Jan. 2026
Noun
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Grimsson pointed out that concerns about Russia or China's growing influence in the Arctic were overblown.—
Anniek Bao,Dan Murphy,
CNBC,
15 Jan. 2026
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With the protests in Iran growing by the day, the conversations in our chats changed to signs of hope even amid grave concerns about our family's safety.—
Arkansas Online,
Arkansas Online,
15 Jan. 2026
Noun
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Somehow, this new sensation emitted an awareness of the magnitude in which skateboarding would warp my life, which only ratcheted up the anxiety of blowing it.—
Literary Hub,
Literary Hub,
12 Jan. 2026
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The news this week that an ICE agent had shot and killed a woman in Minnesota heightened his anxiety.—
Andrea Castillo,
Los Angeles Times,
11 Jan. 2026
Noun
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In these sectors, while unemployment hasn’t surged, hiring has essentially been frozen for the past year, especially for entry-level roles, as firms juggle worries over economic uncertainty and AI fears.—
Tristan Bove,
Fortune,
12 Jan. 2026
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The benchmark 10-year Treasury yield moved higher on Monday as investor worries around the Federal Reserve’s independence spurred volatility in the stock market and following the 10-year auction.—
Sean Conlon,Sawdah Bhaimiya,
CNBC,
12 Jan. 2026
Noun
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But a sense of unease overshadows it.—
Laura Turbay,
Chicago Tribune,
11 Jan. 2026
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Today the sprawling complex is a museum and visitor attraction, where a sense of unease lurks along paved tourist trails and lingers in dark corridors.—
Maureen O'Hare,
CNN Money,
10 Jan. 2026
Cite this Entry
“Perturbation.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/perturbation. Accessed 15 Jan. 2026.
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