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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What Parents Can Do For all of these reasons, Common Sense Media says these products pose a serious risk to younger children and raise concerns for older children as well.—
Sarah Scott,
Parents,
22 Jan. 2026
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Some counties have expressed concerns for their athletes ahead of the men’s World Cup soccer tournament being played in North America this summer.—
Laurence Miedema,
Mercury News,
22 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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This comes as real rates still remain negative, according to the BOJ, as well as mounting fiscal worries.—
Lim Hui Jie,
CNBC,
23 Jan. 2026
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There are significant worries that AI can readily go off the rails or otherwise dispense unsuitable or even egregiously inappropriate mental health advice.—
Lance Eliot,
Forbes.com,
23 Jan. 2026
Noun
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For Prada, the show represented a sense of unease in uncertain times, bringing to life a collection that felt timely in its imperfections.—
Brett F. Braley-Palko,
Forbes.com,
23 Jan. 2026
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At the same time, frequent policy changes that deepen unease can discourage investment and snarl planning.—
Jasmin Malik Chua,
Sourcing Journal,
22 Jan. 2026
Cite this Entry
“Perturbation.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/perturbation. Accessed 25 Jan. 2026.
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