What Is An Adjective?

What Is An Adjective?

An adjective modifies a noun or a pronoun by describing, identifying, or quantifying words. An adjective usually precedes the noun or the pronoun which it modifies.
In the following examples, the highlighted words are adjectives:

The truck-shaped balloon floated over the treetops.

Mrs. Morrison papered her kitchen walls with hideous wall paper.

The small boat foundered on the wine dark sea.

The coal mines are dark and dank.

Many stores have already begun to play irritating Christmasmusic.

A battered music box sat on the mahogany sideboard.

The back room was filled with large, yellow rain boots.

An adjective can be modified by an adverb, or by a phrase or clausefunctioning as an adverb. In the sentence

My husband knits intricately patterned mittens.

for example, the adverb "intricately" modifies the adjective "patterned."
Some nouns, many pronouns, and many participle phrases can also act as adjectives. In the sentence

Eleanor listened to the muffled sounds of the radio hiddenunder her pillow.

for example, both highlighted adjectives are past participles.
Grammarians also consider articles ("the," "a," "an") to be adjectives.

Possessive Adjectives

A possessive adjective ("my," "your," "his," "her," "its," "our," "their") is similar or identical to a possessive pronoun; however, it is used as an adjective and modifies a noun or a noun phrase, as in the following sentences:

I can't complete my assignment because I don't have the textbook.

In this sentence, the possessive adjective "my" modifies "assignment" and the noun phrase "my assignment" functions as anobject. Note that the possessive pronoun form "mine" is not used to modify a noun or noun phrase.

What is your phone number.

Here the possessive adjective "your" is used to modify the noun phrase "phone number"; the entire noun phrase "your phone number" is a subject complement. Note that the possessive pronoun form "yours" is not used to modify a noun or a noun phrase.