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Synonyms

astounding

American  
[uh-stoun-ding] / əˈstaʊn dɪŋ /

adjective

  1. capable of overwhelming with amazement; stunningly surprising.


astounding British  
/ əˈstaʊndɪŋ /

adjective

  1. causing amazement and wonder; bewildering

"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

Derived Forms

Etymology

Origin of astounding

First recorded in 1580–90; astound + -ing 2

Explanation

Astounding is an adjective that describes something bewildering, like the astounding sight of a dog walking on two legs. When something is astounding, you might find yourself unable to speak — after all, astounding comes from the Middle English word astouned, meaning "to stun." If you see something that's astounding, you might just stare and stare, speechless. Astounding also describes something so surprisingly impressive that it overwhelms, like the astounding news that you just won the lottery.

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Vocabulary lists containing astounding

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.

So far, 2026 has been a year of astounding gains for many stocks of semiconductor manufacturers.

From MarketWatch • May 27, 2026

One cup of Man Cereal has an astounding seven grams of saturated fat.

From Salon • May 23, 2026

He played on most days, for an astounding six sets over three hours, with little regard to the weather.

From The Wall Street Journal • May 13, 2026

Patriots goalie Christopher Cortes had a heroic performance, stopping an astounding 24 shots — the last coming one second before the final horn.

From Los Angeles Times • May 1, 2026

It is a truly astounding sight when every tree in a forest becomes individual; where formerly had sprawled a seamless cloak of green there now stood a million bright colors.

From "A Walk in the Woods" by Bill Bryson

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