An adjective is a word that describes or modifies a noun or pronoun, adding detail about size, color, number, quality, or feeling.
For example, in “the tall, quiet, brave firefighter,” the words tall, quiet, and brave are all adjectives describing the firefighter. Adjectives usually come right before the noun they describe (a red car) or after a linking verb (the car is red), and you can stack more than one in a row (the big, old, brown dog).
Comparative and superlative forms let you compare things: fast, faster, fastest; good, better, best. Quick practice: find the adjectives in “The curious kitten chased the bright red ball.” (Answer: curious, bright, red.)