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
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
Example Sentences
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
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
-
But all friends need to be honest with each other, to tell each other home truths when it’s needed, to confront those awkward moments without fear of the reaction.—
Steve Sedgwick,
CNBC,
9 Sep. 2025
-
Two key points in the case were that board members who personally opposed the books took the action against the input of an advisory committee, and that the board members' action was based on speculative, not actual, fears of disruption.—
Taylor Seely,
AZCentral.com,
8 Sep. 2025
Noun
-
And Danielson noted that the team now has plenty of time to practice and give attention to areas of concern.—
Shaun Goodwin,
Idaho Statesman,
9 Sep. 2025
-
At the same time, concern is growing about how certain food additives and preservatives may disrupt the gut’s delicate balance.—
Abby Norman,
Verywell Health,
9 Sep. 2025
Noun
-
At the council meeting for the resolution, several migrants and their families spoke in favor of its passage, expressing their anxieties in day-to-day life, according to The Chronicle.—
Landon Mion,
FOXNews.com,
6 Sep. 2025
-
The starting point is learning to cultivate present-moment awareness and simply noticing your anxiety.—
Bryan Robinson,
Forbes.com,
6 Sep. 2025
Noun
-
The prospect of governments being ousted in Tokyo and Paris fueled further uncertainty, while investors voiced worry over expansive deficit spending in London and Berlin.—
Matthew Martin,
semafor.com,
7 Sep. 2025
-
My worry is that inaction is not a strategy.—
Shivaram Rajgopal,
Forbes.com,
6 Sep. 2025
Noun
-
The brief spasm, though, betrays an unease in the incredibly slim majority Johnson controls and the volatility in his base.—
Philip Elliott,
Time,
8 Sep. 2025
-
That sense of unease has grown more in recent years, as shifting immigration policies fuel confusion about what protections still exist.—
David Rodriguez Muñoz,
Freep.com,
7 Sep. 2025
Cite this Entry
“Perturbation.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/perturbation. Accessed 9 Sep. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share