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

Custom-made by Cartier, the ring cost an astounding $4 million and today is worth a cool $38 million. — Hadley Hall Meares, Vanity Fair, 6 July 2026

The chemistry between the two leads is astounding, with both men encouraged to improvise during filming to make their banter feel authentic. — K. Thor Jensen, PC Magazine, 3 July 2026

Both Smollett and Brown have been beset by controversy throughout their careers, which makes their coupling a bit astounding. — Jason P. Frank, Vulture, 30 June 2026

Little Belgium has several astounding inventions to its name—French fries, waffles, and the saxophone, just to name a few. — Eric Twardzik, Robb Report, 6 July 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