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Synonyms

astound

American  
[uh-stound] / əˈstaʊnd /

verb (used with object)

  1. to overwhelm with amazement; astonish greatly; shock with wonder or surprise.


adjective

  1. Archaic. astonished; astounded.

astound British  
/ əˈstaʊnd /

verb

  1. (tr) to overwhelm with amazement and wonder; bewilder

"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 surprise.

Other Word Forms

Etymology

Origin of astound

First recorded in 1275–1325; Middle English astoun(e)d, past participle of astonen, variant of astonyen “to thunder.” See astonish

Explanation

Astound means to amaze. Savants, or those with extreme brain abnormalities, can astound people by their ability to play Beethoven sonatas on the piano after having heard them only once. Astound has its roots in the verb astonish, originally meaning to stun, and the idea of surprise remains wrapped up in the word. Things like over-the-top fireworks, believable magicians, and the miracle of life tend to astound. But if you lick all your favorite cookies to keep anyone else from taking them––your rudeness could astound as well.

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Vocabulary lists containing astound

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.

For now, Chambliss is content piling up plays that astound football fans across the country—except for those who know him best.

From The Wall Street Journal • Jan. 6, 2026

Train punctuality in Germany is appalling - worse than in the UK, which will astound weary British commuters.

From BBC • Feb. 20, 2025

For 20 excruciating minutes, Geller failed to astound.

From New York Times • Nov. 20, 2024

And many of these events occurred relatively recently, showing that the field of physics continues to astound us.

From Scientific American • Jul. 27, 2023

If they were impressed by Seven and Thorn, Valley’s skill would truly astound them.

From "Witchlings" by Claribel A. Ortega

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