This document defines and describes adjectives. It notes that adjectives modify nouns and describe qualities or states of being. Adjectives come in three forms - absolute, comparative, and superlative. Coordinate adjectives modify the same noun and are separated by commas, while non-coordinate adjectives form a single unit. Adjectives are sometimes confused with adverbs, but adjectives modify nouns while adverbs modify verbs. Finally, some words can function as either adjectives or nouns depending on their use in a sentence.