Simple Definition:
An adjective is a word that describes or gives more information about a noun [person, place, thing, or idea] or pronoun [a word that replaces a noun, such as “he,” “she,” or “it”].
For example, in the sentence “The big dog ran quickly,” “big” is an adjective that describes the dog [a four-legged furry animal], and “quickly” is an adverb [a word that describes a verb] that describes how the dog ran.

Here are some more examples of adjectives:

• “Green” describes the color of the grass. [Green means the color of plants or leaves.]
• “Tall” describes the height of a person or object. [Tall means something is higher than usual.]
• “Delicious” describes the taste of food. [Delicious means something tastes very good.]

Overall, adjectives help us make our writing more descriptive and help us paint a clearer picture of the things we’re talking about by providing more information about the noun or pronoun in question.

Very Simple Definition:
An adjective is a describing word. It tells us more about a noun [person, place, thing, or idea] or pronoun [a word that replaces a noun, such as “he,” “she,” or “it”].

For example, in the sentence “The big dog ran quickly,” “big” is an adjective that describes the dog.

Overall, adjectives help us make our writing more interesting by adding details about what we’re talking about.