What exactly is an adjective? In the simplest terms, an adjective is a term used to define a noun. The adjectives can give a piece of additional descriptive information to the sentence.
For example, you might use something like to describe a student “He is a student.” If you want to include an adjective in the sentence, you could convey clearer information of what you are trying to tell by saying something like “ He is an intelligent student.” or “ He is a good student.” An adjective is one of the nine parts of speech.