No. "In" is a preposition.
Would is not an adjective. It's a modal verb.
The adjective form of argument is argumentative.
No, it is not an adjective. Occupation is the noun. Occupational would be an adjective.
'Tall' would be the adjective.
There is no one adjective for insight. I would say "remarkable" would be a good adjective for insight.
No, it is an adverb. The adjective is clumsy.
An adjective would be beautiful, and an adverb would be beautifully
Answer is not an adjective. The action of answering would be a verb and the answer itself would be a noun.
No, specifically is not an adjective, it is an adverb.The adjective would be specific.
No, it is an adverb. The adjective is just "fresh."
No, it is a noun. Traitorous would be an adjective.
No. The adjective for lunacy would be Lunatic.