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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

  • astoundingly adverb

Etymology

Origin of astounding

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

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.

“Charter is enjoying an astounding turnaround driven by its bundled streaming packages,” MoffettNathanson analyst Craig Moffett wrote at the time.

From MarketWatch • Mar. 7, 2026

"It is really the speed and scale of these representations that is astounding, driving much of the online confusion of what has been targeted, or casualty counts for instance," said Ayad.

From Barron's • Mar. 4, 2026

All of them answered, and the numbers are astounding.

From BBC • Mar. 2, 2026

Vonn, a three-time Olympic medalist, is attempting an astounding comeback after almost six years removed from racing and a partial titanium knee replacement in 2024.

From Los Angeles Times • Feb. 7, 2026

In addition to collaborating on the company’s games, he masterminded all of their early marketing campaigns and shareware distribution schemes, with astounding results.

From "Ready Player One: A Novel" by Ernest Cline

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.