I think "durchaus" also means "quite" according to my dictionary, but it wasn't accepted. I'll report it and see.
How about "This is indeed possible"? If it's wrong, then what is the word for "indeed"?
audio speaks durchaus as two words but it is pronnounced as one. Important for some words like nachdem and vielmehr which have different meanings depending on whether they are 1 or 2 words