good gracious

US /ɡʊd ˈɡreɪ.ʃəs/
UK /ɡʊd ˈɡreɪ.ʃəs/
"good gracious" picture
1.

an exclamation of surprise, alarm, or exasperation

:
Good gracious, I completely forgot about our appointment!
Good gracious, look at the mess you've made!