The word 'sorrowful' is not a noun. The word 'sorrowful' is the adjective form for the noun sorrow. The noun form for the adjective sorrowful is sorrowfulness.
Yes, sorry is an adjective. The noun is sorrow.
Lamentable is an adjective. The -able ending is used to form adjectives. Other examples are laughable and regrettable.
No. If there was, it would be sorries and that word doesn't exist.
Such is a predicate adjective (also referred to more generally as a subject complement). It modifies Sorrow, which is the subject of this sentence. The order of this sentence is inverted from the typical English, which would be " Her sorrow is such." Therefore, sorrow in this case is an adjective because it modifies a noun.
No, the word 'sad' is not a noun, the word sad is an adjective that describes a noun; a sad day, a sad story.The noun form for the adjective sad is sadness, an abstract noun.
I can't think of a direct way to derive an adjective from "grief", but "grief" is a noun form of the verb "grieve", and you can derive a participle from the verb by adding "-ing", giving "grieving", then that can be used as an adjective, as for example in "the grieving widow" (meaning "the widow who is/was grieving"). Another possibility is the compound "grief-filled".
The adjective form of concept is conceptual.The adjective form of conception is conceptional.
The plural form of the noun sorrow is sorrows.The plural possessive form is sorrows'.Example: Their sorrows' ravages could be read in the lines on their faces.
The word 'happy' is not a common noun because it is not a noun. The word 'happy' is an adjective, a word that describes a noun; for example a happy day, a happy baby, etc.The noun form for the adjective happy is happiness, a common noun.
The adjective form for the pronoun they is their.
The Adjective form of Pathologist is Pathological.