The phrase "astonishing choice" is correct and usable in written English.
It can be used to describe a selection or decision that is surprising or impressive in some way.
Example: "The committee made an astonishing choice by selecting the least experienced candidate for the leadership role."
Alternatives: "remarkable decision" or "surprising selection".
It seemed an astonishing choice; Mr. Klein not only lacked education credentials, he had never managed anything larger than the thousand-person antitrust department.
But after seriously bungling the reappointment of the country's impressive current chief justice, Sandile Ngcobo, President Jacob Zuma has just made an astonishing choice for Ngcobo's successor: a virtual unknown, named Mogoeng Mogoeng.
The market is a heartless beast indeed, but the same market that compels Union Square Cafe's exit also affords astonishing choice and dynamism for a diverse population.
While it is hardly astonishing that choices like not smoking are associated with longer life, it is significant that these behaviors in the early elderly years — all of them modifiable — so strongly predict survival into extreme old age.
It features farmers markets, a wide range of authentic crafts and artisans, a plethora of astonishing food choices, lectures, animals, gardening/farming demonstrations and so much more.
To eat in downtown Sydney, one is presented with an astonishing array of choices, befitting a city that seems to have been taken over by the "foodies".
And the – look, just find a thesaurus and insert the formidable adjective of your choice here – astonishing Simone Biles continued to boing her way towards the gymnastics all-around gold with an awesome first performance.
His choice of words was astonishing for its moral equivocation.
But step into the galleries and look around: every picture is astonishing,and the curator Malcolm Daniel's choices are sure and sophisticated.
An astonishing conformism is displayed not just in the choice and location of the victims or the adoption of common fantasy elements.
I have never known a woman who has taken that choice lightly: who has not acted with an astonishing bravery when choosing to have an abortion.
