The phrase "astounding practice" is correct and usable in written English.
It can be used to describe a practice that is remarkably impressive or surprising in some way.
Example: "The team's astounding practice in developing innovative solutions has set them apart in the industry."
Alternatives: "remarkable practice" or "impressive practice".
Abusaleh's accuracy is astounding during practice.
The National Rifle Association is being pelted with criticism after posting the astounding headline "Target Practice" in its magazine next to a photo of House Speaker Nancy Pelosi (D-Calif). and former Arizona Congresswoman Gabrielle Giffords, a shooting victim.
I have seen a nutritarian diet produce astounding results in my practice.
Donations inspired by the ubiquitous Ice Bucket Challenge -- in which participants pour a bucket of ice water on their heads to raise awareness of amyotrophic lateral sclerosis (ALS), a degenerative nerve disease -- have been coming in at an astounding rate since the practice went viral earlier this summer.
And so that revolution saw the creation of astounding new technologies and practices and knowledge: laws and writing and systems of exchange, just to name a few.
This was an astounding reversal of fortune.
It's even more astounding that one can consider this a normal practice — contributing to global pollution simply to gain extra legroom.
"It's astounding to me to find G.M. still has those practices," said Gerald Meyers, the retired chairman of the American Motors Corporation, which eliminated pegged rates in the 1950's.
In the five or six months of an N.F.L. season, it is astounding how seldom the players do any real hitting or tackling in practice.
"Failing to disclose this practice to consumers is bad enough, but Netflix's political hypocrisy is astounding," said Berin Szoka, president of TechFreedom, a Washington-based technology think tank.
