astounding

adjective

as·​tound·​ing ə-ˈstau̇n-diŋ 

: causing astonishment or amazement

an astounding revelation

astoundingly

ə-ˈstau̇n-diŋ-lē 

adverb

Synonyms of astounding

• amazing
• surprising
• startling
• stunning
• shocking
• astonishing

Examples of astounding in a Sentence

He ate an astounding amount of food.

the astounding sight of their cat returning home after having been missing for two years

Recent Examples on the Web

To scientists, the idea that the link between vaccines and autism simply hasn’t been studied enough – as Kennedy often claims – is astounding. — Brenda Goodman, CNN Money, 14 Aug. 2026

The distillery’s legacy stocks may be diminishing over time, but the fact that any producer has enough heritage whiskey left for regular commercial release is astounding. — Chris Perugini, Forbes.com, 12 Aug. 2026

An experience that demands the big screen, featuring even more astounding effects choreography than its predecessor, Godzilla Minus Zero cranks up the terror while always keeping its post-WWII Japan narrative at human eye level. — Jill Goldsmith, Deadline, 11 Aug. 2026

London Brown’s performance as Marvin this season is phenomenal; the character development is astounding. — Aramide Tinubu, Variety, 8 Aug. 2026

Word History

Etymology

from present participle of astound entry 1

First Known Use

1590, in the meaning defined above

Rhymes for astounding

• abounding
• compounding
• confounding
• expounding
• foregrounding
• impounding
• propounding
• rebounding
• resounding
• surrounding
• bounding
• founding