The phrase "astounding given" is correct and usable in written English.
It can be used to express surprise or amazement about a situation or fact, often followed by a specific context or condition that makes it surprising.
Example: "The results of the experiment were astounding given the limited resources we had to work with."
Alternatives: "remarkable considering" or "surprising in light of".
All of which seems utterly astounding given how stupid the film is".
This is pretty astounding, given that things looked so bleak for her just a short time ago.
The range of take-out choices is astounding, given that everything — from cakes and cookies to various entrees and side courses — is made daily from scratch.
This was pretty astounding given that you go to Princeton and you think, "OK, Princeton, law school, MBA, onward and upward". I had an education very quickly that Princeton can launch you but it can't sustain you.
"We want to be able to pin down the radius to the level of 100 metres," he says — a precision that would be astounding, given that these objects are millions of light years away.
This rise in prominence seems even more astounding given that the Underbelly was first used as a venue in 1998, and didn't even have its own toilets until last year.
An astounding result given the times.
This is an astounding achievement, given what the country has suffered.
Couples used wills, powers of attorney and innovative new legal arrangements like domestic partnerships and second-parent adoption to try to get around these injustices, an astounding achievement given the reigning conservatism of the '80s and early '90s.
Most images were astounding, and given the iPhone 8's advantages in size, convenience and usability, I predict that my camera will be spending a lot more time in the drawer.
The difference is that Hitchcock was aroused by the spectacle of arousal, whereas Shyamalan remains as coolly unstirred by sex as he was in his previous movies — an astounding indifference, given the historical entwining of eros and fright.
