Dictionary.com
Thesaurus.com
Synonyms

astonishing

American  
[uh-ston-i-shing] / əˈstɒn ɪ ʃɪŋ /

adjective

  1. causing astonishment or surprise; amazing.

    an astonishing victory; an astonishing remark.


astonishing British  
/ əˈstɒnɪʃɪŋ /

adjective

  1. causing great surprise or amazement; astounding

"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

  • astonishingly adverb
  • astonishingness noun

Etymology

Origin of astonishing

First recorded in 1520–30; astonish + -ing 2

Explanation

Something astonishing is astounding, staggering, stupefying, amazing, or incredible. It's not something you see every day. This is a pretty strong word. A dog shaking hands is not astonishing, but a dog calling 911 for its owner definitely is. Astonishing things are amazing; they blow your mind. When people first walked on the moon, that was astonishing. Miracles are astonishing. If you say, "Holy cow! I can't believe what I'm seeing," you're probably seeing something astonishing.

Keep Reading on Vocabulary.com

Vocabulary lists containing astonishing

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.

It’s also easy to think that Sandisk’s astonishing rally will also run out of steam soon—but it keeps defying that logic to look increasingly unstoppable.

From Barron's • Apr. 10, 2026

Floridians are paying an astonishing 47% more; Texans, 45% more; and North Carolinians, just over 40% more.

From MarketWatch • Apr. 2, 2026

Every week it’s a more astonishing screwup, frequently without consequences for any lawyer who admits to error.

From Slate • Mar. 27, 2026

“It’s astonishing to me that the Dodgers have not taken it upon themselves, as this great community partner, to fix this problem,” Walker said.

From Los Angeles Times • Mar. 25, 2026

To produce a ton of the stuff, he had explained over his astonishing cocktail, cost next to nothing.

From "Atonement" by Ian McEwan