astonishing
US /əˈstɑː.nɪ.ʃɪŋ/
UK /əˈstɑː.nɪ.ʃɪŋ/

1.
extremely surprising or impressive; amazing.
:
•
The view from the mountain top was astonishing.
•
She made an astonishing recovery after the accident.
extremely surprising or impressive; amazing.