An adjective is a word that describes or modifies a noun or pronoun. Adjectives can be used to describe the qualities of someone or something independently or in comparison to something else. For example, in the sentence “The book was terrible”, the word “terrible” is an adjective that describes the noun “book”.

Here are some examples of adjectives:
Descriptive: Adds more information to the noun
Quantitative: Indicates how many or how much
Comparative: Compares nouns to something else
Superlative: Means that something has more of a particular quality than any other of its kind

Here are some tips for using adjectives:
Adjectives can come before or after a noun.

To describe qualities that can vary in amount or degree, adjectives can change form (usually by adding “-er” or “-est”).

Adjectives can also be used with adverbs like “more”, “most”, “less”, “very”, “slightly”, etc.

When an adjective follows a linking verb such as “be” or “seem”, it is called a predicate adjective.

The word “adjective” comes from the Latin nōmen adjectīvum, which is a calque of the Ancient Greek epítheton ónoma, meaning “additional noun”.