PERTURB Synonyms: 90 Similar and Opposite Words

Q: How does the verb 'perturb' contrast with its synonyms?

Some common synonyms of perturb are agitate , discompose , disquiet , disturb , fluster , and upset . While all these words mean "to destroy capacity for collected thought or decisive action," perturb implies deep disturbance of mind and emotions. // perturbed by her husband's strange behavior

Q: In what contexts can 'agitate' take the place of 'perturb'?

Although the words agitate and perturb have much in common, agitate suggests obvious external signs of nervous or emotional excitement. // in his agitated state we could see he was unable to work

Q: When would 'discompose' be a good substitute for 'perturb'?

While the synonyms discompose and perturb are close in meaning, discompose implies some degree of loss of self-control or self-confidence especially through emotional stress. // discomposed by the loss of his beloved wife

Q: When is 'disquiet' a more appropriate choice than 'perturb'?

While in some cases nearly identical to perturb , disquiet suggests loss of sense of security or peace of mind. // the disquieting news of factories closing

Q: When can 'disturb' be used instead of 'perturb'?

In some situations, the words disturb and perturb are roughly equivalent. However, disturb implies interference with one's mental processes caused by worry, perplexity, or interruption. // the discrepancy in accounts disturbed me

Q: Where would 'fluster' be a reasonable alternative to 'perturb'?

The words fluster and perturb can be used in similar contexts, but fluster suggests bewildered agitation. // his declaration of love completely flustered her

Q: When might 'upset' be a better fit than 'perturb'?

The meanings of upset and perturb largely overlap; however, upset implies the disturbance of normal or habitual functioning by disappointment, distress, or grief. // the family's constant bickering upsets the youngest child

perturb

verb

pər-ˈtərb

Definition of perturb

as in to disturb

to trouble the mind of; to make uneasy the caller's strange remark perturbed me enough to keep me awake that night

Synonyms & Similar Words

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How does the verb perturb contrast with its synonyms?

Some common synonyms of perturb are agitate, discompose, disquiet, disturb, fluster, and upset. While all these words mean "to destroy capacity for collected thought or decisive action," perturb implies deep disturbance of mind and emotions.

perturbed by her husband's strange behavior

In what contexts can agitate take the place of perturb?

Although the words agitate and perturb have much in common, agitate suggests obvious external signs of nervous or emotional excitement.

in his agitated state we could see he was unable to work

When would discompose be a good substitute for perturb?

While the synonyms discompose and perturb are close in meaning, discompose implies some degree of loss of self-control or self-confidence especially through emotional stress.

discomposed by the loss of his beloved wife

When is disquiet a more appropriate choice than perturb?

While in some cases nearly identical to perturb, disquiet suggests loss of sense of security or peace of mind.

the disquieting news of factories closing

When can disturb be used instead of perturb?

In some situations, the words disturb and perturb are roughly equivalent. However, disturb implies interference with one's mental processes caused by worry, perplexity, or interruption.

the discrepancy in accounts disturbed me

Where would fluster be a reasonable alternative to perturb?

The words fluster and perturb can be used in similar contexts, but fluster suggests bewildered agitation.

his declaration of love completely flustered her

When might upset be a better fit than perturb?

The meanings of upset and perturb largely overlap; however, upset implies the disturbance of normal or habitual functioning by disappointment, distress, or grief.

the family's constant bickering upsets the youngest child

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 perturb Vitello, three hours removed from being ejected for the second time in three days, was still perturbed. — Justice Delos Santos, Mercury News, 29 Aug. 2026 Having a motivated and slightly perturbed Baker Mayfield won’t hurt. — The Athletic Nfl Staff, New York Times, 25 Aug. 2026 So, the notion that vaccines in any way weaken or overwhelm or perturb our immune system is just nonsensical. — Mary Kekatos, ABC News, 13 Aug. 2026 Some people seemed perturbed to discover that Cheekface sound like, well, Cheekface. — Zach Schonfeld, Pitchfork, 3 Aug. 2026 See All Example Sentences for perturb

Recent Examples of Synonyms for perturb

Verb

Her departure came just the day after prosecutors said the baby's mother discovered disturbing camera footage over a three-month period.

— Dean Fioresi, CBS News, 28 Oct. 2026
Then the heart-wrenching, disturbing discussion of why Nevada became famous overnight was brought up.

— Omar Kelly, Miami Herald, 27 Oct. 2026

Definition of disturb

Verb

The mathematics and computer science graduate, who spent two years in the Peace Corps, launched Netflix by mailing DVDs in red envelopes to customers bothered by Blockbuster Video chain’s practices and late fees.

— Meg James, Los Angeles Times, 26 Oct. 2026
Some people, like me, are bothered by such images but can mostly ignore them.

— Gabriela Galvin, Scientific American, 26 Oct. 2026

Definition of bother

Verb

That move sparked enormous street protests in Israel, and alarmed many Israeli citizens overseas.

— Daniel Brook, New Yorker, 24 Oct. 2026
The new company has nearly $80 billion in debt, with leverage of six-and-a-half times trailing earnings, a ratio that has alarmed investors and triggered credit rating downgrades.

— Dade Hayes, Deadline, 21 Oct. 2026

Definition of alarm

Verb

Although officials have not released details about the cause of death, scientists agree that if it was caused by ordinary plague, the wider world has little to worry about.

— Faye Flam, Scientific American, 27 Oct. 2026
Jason Henry | Bloomberg | Getty Images Anthropic’s IPO prospectus is chock-full of details for investors to celebrate — and worry about.

— Ashley Capoot, CNBC, 27 Oct. 2026

Definition of worry

Verb

Short enough to read in a single sitting, Sara Gran’s chilling story of an architect succumbing to demonic possession will leave readers stunned and unsettled.

— David Faris, TheWeek, 23 Oct. 2026
The recent layoffs have nevertheless unsettled Britain’s independent production community, which has already endured several difficult years of shrinking budgets and fewer commissions.

— Elsa Keslassy, Variety, 21 Oct. 2026

Definition of unsettle

Verb

Huang’s ideas concerned two formulas that appeared in Ramanujan’s letters and are now known as the Rogers-Ramanujan identities.

— Lyndie Chiou, Scientific American, 29 Oct. 2026
OpenAI therefore leaves individual training rewards unchanged when monitors flag concerning samples.

— Aamir Khollam, Interesting Engineering, 29 Oct. 2026

Definition of concern

Verb

This week’s public skirmish was a repeat performance, if not a somewhat pathetic display of both men’s need to agitate for attention.

— Lorraine Ali, Los Angeles Times, 28 Oct. 2026
But while the calls to resign or step aside have waned, many are still agitating for change.

— ABC News, ABC News, 12 Oct. 2026

Definition of agitate

Browse Nearby Words

pertness

perturb

perturbable

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“Perturb.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/perturb. Accessed 31 Oct. 2026.

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Synonyms of perturb

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