A very strong feeling of astonishment or shock; an overwhelming surprise (stronger than mere surprise).
彼の告白を聞いて私は驚愕した。
I was astonished when I heard his confession.
新発見のニュースは科学界に驚愕を与えた。
The news of the new discovery shocked (astonished) the scientific community.
その結果には驚愕を隠せなかった。
They couldn't hide their astonishment at the result.