This document defines and provides examples of different types of adjectives: positive adjectives simply describe a noun, comparative adjectives compare two nouns, and superlative adjectives indicate the highest or lowest degree of a quality. Positive adjectives modify nouns without comparison, such as "hardworking student." Comparative adjectives use modifiers like "bigger" or "more" to compare qualities between two nouns, as in "His cat is bigger than my dog." Superlative adjectives use "the" and modifiers like "tallest" or "most" to indicate an absolute quality, for example "Nadeem is the tallest student in class."