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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.

Luke Littler produced an astonishing comeback from 5-0 down to stun Gerwyn Price 6-5 and win week seven of Premier League Darts in Dublin.

From BBC • Mar. 19, 2026

Carbyne was bought by Taser stun gun maker Axon for $625 million in November 2025.

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

Then they stun themselves against clear windowpanes and die, fatly baffled in the sun.

From "The God of Small Things" by Arundhati Roy