An adjective is like a friend to a noun which assists in its description. To keep it precise it is a description of a noun. Adjective answers the questions how many? What? Which? For example, Geeta being a noun requires an adjective to describe how Geeta is that is, Geeta is beautiful where beautiful is the adjective. An adjective not only describes a noun but also a pronoun. For example, Ravi is studying in 9th class and he is smart. Here, smart described HE which is a pronoun representing Ravi.
