Yes, it can be an adjective based on the noun form. Formal has a connotation of an important or official occasion (e.g. formal dinner, formal wear, formal complaint).
Formal is an adjective.
The comparative form of the adjective 'formal' is more formal.The superlative form is 'most formal'.
formal, formative
Yes, it is. It is the opposite of the word formal (not formal), and a synonym of casual or unofficial.
I'm not sure whether you are asking about "formal" (which is an adjective) or "in" (which is a preposition).
YesAn adjective can describe a person
Formal is not a prefix itself. The for- in formal, however, is a prefix.
There are no formal adverbs. There is also no adjective form based on the adjective conceptional (i.e. misconceptional). The noun misconception is related to the verb "to misconceive" which has adjective forms misconceiving, misconceived, and misconceivable. None of these create a formal adverb.
No, formal is an adjective, the adverb is formally.
The adjective may be facilitated (the past participle), or facilitatory.(There is an adjective facilitory but it seems to be a special use rather than formal language.)
it what happens when you stick your finger in electrical socket
It shouldn't. It's an American idiom.