In the given sentence an appropriate adjective is, long.
Because A term that usually modifies a noun or noun phrase or characterizes its referent is known as an adjective in linguistics. The noun's information is changed by it in terms of semantic function. A noun or pronoun that serves as the subject of a sentence can be described or given additional information using an adjective, which is a word in the English language.
After the verb or before the noun they modify, adjectives are encountered. Adjective forms come in three different varieties: positive or absolute, comparative, and superlative. A noun or pronoun that serves as the subject of a sentence can be described or given extra detail with the help of an adjective.
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