astounding
SMART Vocabulary: related words and phrases Surprising and shocking
against all expectationsphrase
amaze
amazing
amazingly
astonish
dumbfounding
dumbfoundingly
dynamite
earth-shaking
earth-shattering
one for the booksidiom
pull
pull something out of the bag/hatidiom
raise (a few) eyebrowsidiom
reality check
turn-up for the book(s)idiom
unbelievable
walk
walk in on someone
world-shattering
Related word
staggeringly
staggering | American Dictionary
staggering
adjective
us/ˈstæɡ·ər·ɪŋ/
shocking because of being extremely large:
Nursing care costs a staggering $15,000 per week!