/ əˈstɒnɪʃt; NAmE əˈstɑːn-/ adjective
astonished (to find / hear / learn / see sth) | astonished (at / by sth/sb) | astonished (that ... ) very surprised
SYN amazed :
He was astonished to learn he'd won the competition.
My parents looked astonished at my news.
She seemed astonished (that) I had never been to Paris.
The helicopter landed before our astonished eyes.