- The definition of astound is to shock, surprise or amaze.
If you tell someone something that is totally amazing or confusing, this is an example of astound.
astound definition by Webster's New World
Origin: ; from Middle English astouned, astoned, past participle of astonien, astonish
astound definition by American Heritage Dictionary
transitive verb a·stound·ed, a·stound·ing, a·stounds
Origin: From Middle English astoned, past participle of astonen, to amaze; see astonish.
- a·stoundˈing·ly adverb