More formal way to say "No way!"? [closed]

What would be a more formal way to say "No way!"? For example, in a business conference setting.

Solution 1:

With regards to @Mari-Lou A's link, a quick google reveals two possibilities:

under no circumstances

From Oxford Dictionaries

Never, whatever the situation is or might be.

and

not at all

definitely not

Also from ODO (Google Dictionaries take all entries from here)

Solution 2:

The most formal way to say "no way" (as in: 'that cannot possibly be an accurate statement') is:

"Surely, you jest." (Although it isn't used much, anymore.)

"No way," in the sense of 'that outcome is not possible'- in the context of a business conference - would probably be expressed as:

"We will have to look into that." AmE