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Synonyms

stun

American  
[stuhn] / stʌn /

verb (used with object)

stunned, stunning
  1. to deprive of consciousness or strength by or as if by a blow, fall, etc..

    The blow to his jaw stunned him for a moment.

  2. to astonish; astound; amaze.

    Her wit stunned the audience.

  3. to shock; overwhelm.

    The world was stunned by the attempted assassination.

  4. to daze or bewilder by noise.

    Synonyms:
    stupefy

verb (used without object)

  1. to cause astonishment or amazement.

    She stunned in a black and silver beaded gown, accessorized with a sparkly clutch.

noun

  1. the act of stunning.

  2. the condition of being stunned.

stun British  
/ stʌn /

verb

  1. to render unconscious, as by a heavy blow or fall

  2. to shock or overwhelm

  3. to surprise or astound

"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

noun

  1. the state or effect of being stunned

"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

Related Words

See shock 1.

Etymology

Origin of stun

First recorded in 1250–1300; Middle English stonen, stunen (verb), from Old French estoner “to shake, make resound”; astonish

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.

That’s especially maddening for Ezekowitz, who doesn’t waste his computing power on upsets that stun exactly nobody.

From The Wall Street Journal • Mar. 18, 2026

Scotland, who aim to stun France and boost their own title hopes on Saturday, have not won the Triple Crown since 1990.

From BBC • Mar. 6, 2026

Axon Enterprises stock jumped on Wednesday, as the maker of Taser stun guns said its efforts at providing artificial intelligence-driven services to law enforcement clients have led to bookings.

From MarketWatch • Feb. 25, 2026

Taser, the biggest manufacturer of stun guns, insists their products are safe.

From Barron's • Feb. 19, 2026

He wanted to stun Stalin with the news.

From "Bomb" by Steve Sheinkin