/ əˈstaʊndɪd; NAmE / adjective
astounded (to find, learn, see, etc. sth) | astounded (at / by sth) | astounded (that ... ) very surprised or shocked by sth, because it seems very unlikely
SYN astonished :
an astounded expression
How can you say that? I'm absolutely astounded.
I was astounded to see her appear from the house.
She looked astounded at the news.
The doctors were astounded (that) he survived.