The phrase "deeply astonished" is grammatically correct and can be used in written English.
Example: She was deeply astonished by the news of her promotion and could hardly contain her excitement.
Describing himself as "astonished and deeply disappointed" by Takata's response, Blumenthal went on to call the company's decision "a callous misjudgment". Callous it may have been, but one could hardly call it a misjudgment.
"I'm astonished at these comments, which are deeply insincere – and a clear attempt to deceive the British public," the former work and pensions secretary said.
I was astonished to discover that my prior suspicions were deeply misguided.
The Mail, which carried a spread headlined "Four Canutes of British justice", argued that the supreme court ruling was "astonishing" and "deeply depressing".
Chris M. Leslie, a politician in the opposition Labour Party, said it was "astonishing that deeply irresponsible decisions by these bankers could have forced a bailout necessary to save depositors, and yet no enforcement action is brought, and nobody is punished for this".
Mackay Conservation Group co-ordinator Ellen Roberts said it was "astonishing and deeply troubling that it has taken a legal case by a small community group to bring the approval process under proper public scrutiny".
Michel Faber, for me one of the most interesting authors out there today, has said that his new novel, the mesmerising The Book of Strange New Things described as "astonishing and deeply affecting" by M John Harrison, is probably going to be his last.
No stranger to The Creators Project, the influential master sculptor recently announced that he would be using Vantablack, a new substance he describes as "astonishing, so deeply black that your eyes can't really see it at all," in his new works. .
Many Egyptians who went to the square to protest were astonished by the vitality they found there — and shocked at how deeply estranged they had become from each other.
The nurses could become deeply touched and amazed when patients shared their trust and openness: "Sometimes I'm really astonished, that they choose to share their troubles and worries with me!
