The phrase "exceedingly important that" is correct and can be used in written English.
It is often used to express the high level of importance or urgency in a certain situation. Here is an example: "It is exceedingly important that we address climate change before it's too late." or "It is exceedingly important that you complete the assignment by tomorrow, as it will affect your final grade."
These are exceedingly important issues that reach far beyond this particular case".
But one exceedingly important item that was on this year's to-do list remains -- an initial public offering -- and it will not be crossed off the list anytime soon.
It is exceedingly important to realize that success in biopharmaceutical innovation is about the hard work of adapting scientifically, nationally and globally all at the same time.
In fact, in view of our ignorance of the subject and its clinical application it is exceedingly important... that investigation of certain well-defined diseases be carried out, so as to reveal to us the changes which occur in the acid-base balance in these diseases and perhaps give us a key to their explanation.
Alas, this wholesale dismissal of technology's past ignores one exceedingly important historical lesson: that culture, broadly conceived, affects technology at least as much as technology affects culture.
Like, 'This pistachio must be right here exactly!' " Mr. Trotter grants that control is exceedingly important to him, and that there is an inherent contradiction between the nature of his business — hospitality — and the radical extent to which he takes his quest for excellence.
You may not agree, but understand their preferences as a sign of their own personality growth and emerging peer relationships that are exceedingly important as they mature.
"A victory like this one should certainly remind Senate Democrats of the power that comes from sticking together, something that will be exceedingly important for the Gorsuch fight," Sroka said.
This chapter discusses the cryptography, a very complex and involved paradigm that plays an exceedingly important role in modern computer and network security.
This becomes exceedingly important when we realize that our media-saturated populations learn more about the world today from watching images in the media, than we do from observing life experiences -- especially when young.
