For the word "such", most sources say that it should be followed by a noun (phrase) but mention nothing about "such" + adj.
Such confident of him! But can he pull that off?
That's such arrogant of him.
I know these sentence wouldn't be considered problematic if I substitute "such" for "so". But can I use "such" as an adverb in this way to modify only an adjective (but not a noun)?
M-W's entry of such as an adverb has the following example:
such tall buildings
Of course, that can be read as "Such" + "tall buildings" (noun phrase), but can that be also read as "Such tall" (adjective modified by adverb "such") + "buildings"?
Related question: If the rule is "such (a) + adj. + noun", why is "such fun" correct?
This question discussed the sentence "It was such fun for all of us to be together". But I think "fun" in that sentence could be considered a noun. So, in that line of thought, that question does not provide much insight to this question I have.