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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

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.

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

From Salon • May 23, 2026

Sandisk has soared an astounding 3,218% over the last 12 months as its solid-state drives, or eSSDs, have become a crucial component in artificial-intelligence data centers.

From Barron's • May 19, 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

The astounding discovery that could link Eastern and Western medicine.

From MarketWatch • May 12, 2026

Off the field he was quiet, serene, and smart as a whip, his passivity neatly hiding an astounding determination to succeed.

From "Friday Night Lights: A Town, A Team, And A Dream" by H.G. Bissinger

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