Dictionary.com
Thesaurus.com
Synonyms

unnerve

American  
[uhn-nurv] / ʌnˈnɜrv /

verb (used with object)

unnerves, present (3rd person singular) unnerved, past participle, past unnerving present participle
  1. to deprive of courage, strength, determination, or confidence; upset.

    Fear unnerved him.


unnerve British  
/ ʌnˈnɜːv /

verb

  1. (tr) to cause to lose courage, strength, confidence, self-control, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Inflected Forms

Participles

Conjugated Forms

Present

Past

Future

Etymology

Origin of unnerve

First recorded in 1595–1605; un- 2 + nerve

Explanation

To unnerve someone is to make them feel scared or confused. Haunted houses are meant to unnerve you — though there may be nothing that unnerves you more than the first day at a new school. The original meaning of unnerve, dating back to the 17th century, was "to destroy the strength of." The source of this definition was a now-obsolete meaning of nerve, "to give strength and vigor." Today when you unnerve someone, instead of destroying their strength, you destroy their composure — in other words, you make them nervous or uncertain.

Keep Reading on Vocabulary.com

Vocabulary lists containing unnerve

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

And gauging his public reaction afterward, it appeared to unnerve McVay.

From Los Angeles Times Apr. 25, 2026

Treacy at Apex sees any change in the Fed’s language around the risk of inflation due to geopolitical conflict as likely to unnerve investors.

From MarketWatch Mar. 18, 2026

“A conflict like this has the clear potential to unnerve international businesses operating in the Gulf,” said Michael Ratney, who served as U.S. ambassador to Saudi Arabia under the Biden administration.

From The Wall Street Journal Feb. 28, 2026

If Musk moves ahead with the idea much of that $35 billion could come from his Tesla stake, which would unnerve investors for a while.

From Barron's Jan. 21, 2026

He could unnerve almost everyone by growling at them, but not Maria.

From "The House of the Scorpion" by Nancy Farmer

A 2006 US embassy cable described him as the BNP's "heir apparent" who "inspires few but unnerves many".

From Barron's Dec. 24, 2025

A feast for the curiosity-starved brain, “Invention” is the kind of revelatory work that inspires and unnerves in equal measure, a distinctly modern masterpiece that maps the rabbit hole in a way only cinema can.

From Salon Jun. 7, 2025

County Board of Supervisors is looking to pull hundreds of millions of dollars out of LAHSA, a move that unnerves some at L.A.

From Los Angeles Times Apr. 1, 2025

But what viewers always focus on are the moments where one candidate has a zinger of a line, or somehow unnerves their opponent, or simply seems more in control.

From BBC Sep. 9, 2024

“You want people to look, especially if you're vulnerable. Plus it unnerves the attacker. You don’t have to say ‘kiai’-some people say ‘ha,’ or ‘hey,’ or a different word.

From "Maybe He Just Likes You" by Barbara Dee

Bowling an immaculate line and using the demons in the pitch, Archer unnerved Devon Conway with a blow to the helmet and, four balls later, had the left-hander fend to second slip.

From BBC Jun. 27, 2026

Still, fans of A24’s output are unnerved by the foray into AI, believing the deal is antithetical to the trendy studio’s creative-first marketing.

From Salon Jun. 23, 2026

The results unnerved some Altadena residents, who see more and more fire-destroyed homes being rebuilt.

From Los Angeles Times May 21, 2026

The spending should generate future sales and earnings, but the uncertainty unnerved investors.

From Barron's Apr. 23, 2026

The medicine seemed to have quieted his dad down, too, but Gregor was still unnerved by how fragile he looked.

From "Gregor the Overlander" by Suzanne Collins

It is unnerving to see how close the drone came to the dozens of apartment buildings surrounding the plant.

From The Wall Street Journal Jul. 8, 2026

As unnerving as this post was, it’s probably not the most questionable thing Mollen has put on her social-media feeds.

From Salon Jun. 4, 2026

But it was the contents of his carry-on bag that proved truly unnerving.

From Los Angeles Times Jun. 3, 2026

Performing a comedy routine based on her experience was unnerving, she says, as she was scared to be vulnerable about her mistakes and risk being called a fool by the audience.

From BBC May 18, 2026

But the noise was unnerving all the same.

From "The Ear, the Eye, and the Arm" by Nancy Farmer

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training