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 Trump’s executive order perturbed many in the architecture profession when it was issued last year. — Oscar Holland, CNN Money, 12 June 2026 The survey reflects a sense that Americans may be growing less concerned about dying, and more perturbed by the financial implications of remaining alive. — Daniel De Visé, USA Today, 4 May 2026 Lobo appeared perturbed that the shop’s owner brought the claim to the Clark County District Attorney instead of filing a civil suit. — Steve Henson, Los Angeles Times, 17 June 2026 Weston Richey, a 25-year-old Texan photographer with whom Kyra seemed to be perturbed, pulled her for a chat to try to figure out why she was annoyed with him. — Anna Peele, Vulture, 20 May 2026 See All Example Sentences for perturb

Recent Examples of Synonyms for perturb

Verb

He was particularly disturbed by administration officials' attempts to characterize both as domestic terrorists.

— Jude Joffe-Block, NPR, 1 July 2026
The appeal is largely practical, since powders travel well in a bag, don’t leave hands greasy and can be dusted on without disturbing whatever’s already on your skin.

— Lauren Jarvis-Gibson July 1, Charlotte Observer, 1 July 2026

Definition of disturb

Verb

Now back in King’s Landing, Corlys is distracted at best, meeting with Rhaenyra’s small council to address the crown’s nonexistent funds — the latest on a long list of problems that need solving for the new Queen of the Seven Kingdoms.

— Zoe Papelis, Vulture, 6 July 2026
The 5-foot-4 Italian tried not to let the presence of the record eight-time men's singles champion distract her.

— ABC News, ABC News, 6 July 2026

Definition of distract

Verb

Those measures, however, have alarmed privacy advocates, who argue that age-gating the internet would affect all users — not just children.

— Angela Yang, NBC news, 30 June 2026
That’s alarmed the National Union of Healthcare Workers, which represents about 400 nurses and staff at two psychiatric hospitals in Sacramento.

— Grant Stringer, Mercury News, 29 June 2026

Definition of alarm

Verb

At 53%, most Americans worry AI could cost them or someone in their household a job, according to a Reuters/Ipsos poll released in June.

— Rachel Barber, USA Today, 1 July 2026
The 2025 outbreak was HPAI, and that’s the strain that continues to worry veterinarians and poultry scientists.

— Ryan Brennan, Kansas City Star, 1 July 2026

Definition of worry

Verb

The finale may leave viewers feeling unsettled, but the show has already been renewed for a second season.

— Alex Jhamb Burns, Condé Nast Traveler, 4 July 2026
Widespread haze from wildfire smoke in Colorado and Utah will also filter into the region at times, potentially reducing visibility and adding to already unsettled atmospheric conditions.

— Brandi D. Addison, USA Today, 2 July 2026

Definition of unsettle

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pertness

perturb

perturbable

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“Perturb.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/perturb. Accessed 8 Jul. 2026.

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Synonyms of perturb

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