- causing amazement and wonder; bewildering
WordReference Random House Learner's Dictionary of American English © 2026
as•tound•ing /əˈstaʊndɪŋ/USA pronunciation adj.
WordReference Random House Unabridged Dictionary of American English © 2026- causing great amazement or surprise;
astonishing:an astounding feat of strength.
as•tound•ing
(ə stoun′ding),USA pronunciation adj.
as•tound′ing•ly, adv.
- capable of overwhelming with amazement;
stunningly surprising.
- astound + -ing2 1580–90
Collins Concise English Dictionary © HarperCollins Publishers::
astounding /əˈstaʊndɪŋ/ adj
as•tound /əˈstaʊnd/USA pronunciation
v. [~ + object]
WordReference Random House Unabridged Dictionary of American English © 2026- to overwhelm with amazement;
astonish:We were astounded by this amazing feat.
as•tound
(ə stound′),USA pronunciation v.t.
adj.
as•tound′ment, n.
- to overwhelm with amazement;
astonish greatly;
shock with wonder or surprise.
adj.
- [Archaic.]astonished;
astounded.
- Middle English astoun(e)d, past participle of astonen, variant of astonyen to astonish 1275–1325
- 1. See surprise.
Collins Concise English Dictionary © HarperCollins Publishers::
astound /əˈstaʊnd/ vb
- (transitive) to overwhelm with amazement and wonder; bewilder
'astounding' also found in these entries (note: many are not synonyms or translations):
astonishing
- fabulous
- staggering
- stupendous
- collective noun
- fickle
- mind-blowing
- prodigious
- wonderful
- shocking
- stunning