What Is an Adjective? Definition, Examples & How to Find Them

You’ve probably been using adjectives since you first learned to talk — even if you didn’t know what to call them. They’re the words that make a “car” into a “red car” or a “story” into a “boring story.” In this guide, we’ll break down what an adjective is, show you dozens of examples, and give you a simple method to spot one in any sentence.

Adjective definition: A word that modifies a noun or pronoun · Primary function: Describe, identify, quantify, or qualify nouns · Common types: Descriptive, quantitative, demonstrative, possessive, interrogative, distributive · Ordinal rank in parts of speech: Third, after nouns and verbs · Frequency in English text: Approximately 5% of all words

Five key facts about adjectives, one pattern: they all center on the idea that adjectives exist to narrow down what a noun means.

What is an adjective?

Simple adjective definition

An adjective is a word that modifies or describes a noun or pronoun. The Merriam-Webster dictionary (the authoritative US lexicographic reference) defines an adjective as “a word belonging to one of the major form classes in any of numerous languages … typically serving as a modifier of a noun.” In plain English, adjectives add information: they tell you what kind, how many, or which one.

The Cambridge Dictionary (a flagship British English reference) puts it similarly: adjectives give more information about people, animals, or things represented by nouns and pronouns. Scribbr (an academic writing resource) and Dictionary.com (a widely used online dictionary) echo the same core idea — an adjective modifies a noun or pronoun.

Why adjectives matter

Without adjectives, every noun would be generic. “Hand me the cup” could refer to any cup. “Hand me the blue cup” points to exactly one. As Grammar Monster (a popular grammar instruction site) notes, grammarians often prefer the term “modifying” over “describing” because adjectives limit or restrict meaning — they make language precise.

The implication: adjectives are not just decorative. They are the primary tool for reducing noun ambiguity, which is why they appear in every major reference grammar as a core part of speech.

What is an example of an adjective?

Single-word adjectives in sentences

The simplest examples place an adjective right before a noun. Merriam-Webster’s grammar article (a trusted voice on usage) offers scruffy, purple, concerned, and special as adjectives. Cambridge Dictionary (a premier English-language reference) lists big, small, blue, old, rich, and nice. Dictionary.com (a widely used online dictionary) adds shy, rotten, four, another, cloudy, lovely, tall, and cool.

• “The scruffy dog barked.”
• “She wore a purple dress.”
• “We have three tickets.”

Adjective phrases

Adjectives can also appear in phrases — groups of words that together modify a noun. Scribbr (an academic writing resource) explains that adjectives are useful for comparing one thing with another, so phrases like “more interesting than the first” function as adjective phrases. Grammarly (a widely used digital tool) identifies comparative and superlative forms as a common type.

The pattern: whether single-word or phrasal, adjectives always attach to a noun to narrow its scope. That’s their job.

What are 10 examples of adjectives?

Descriptive adjective list

Descriptive adjectives name qualities — size, color, shape, opinion. YourDictionary (a practical language reference site) notes that adjectives can describe size, shape, age, color, origin, or material. Here are 10 common examples with sources:

1. Big — “a big house” (Cambridge Dictionary, a premier English-language reference)
2. Small — “a small cat” (Cambridge Dictionary)
3. New — “a new idea” (Merriam-Webster’s grammar article)
4. Old — “an old tree” (Cambridge Dictionary)
5. Hot — “hot soup” (Dictionary.com, a widely used online dictionary)
6. Cold — “cold weather” (Dictionary.com)
7. Kind — “a kind person” (Grammar Monster, a popular grammar instruction site)
8. Brave — “a brave soldier” (Scribbr, an academic writing resource)
9. Gentle — “a gentle touch” (Grammarly writing assistant)
10. Honest — “an honest answer” (Merriam-Webster dictionary)

Quantitative adjectives

Quantitative adjectives tell you how many or how much. Grammar Monster (a popular grammar instruction site) distinguishes descriptive adjectives from quantitative ones. Examples: some, many, six, every, no.

Demonstrative adjectives

Scribbr (an academic writing resource) covers demonstrative adjectives: this, that, these, those. They point to specific nouns: “Pass me that book.”

The trade-off: using more adjectives adds precision but can clutter writing. The best writers choose the minimum number needed for clarity.

Is an adjective a describing word?

Adjectives vs. other parts of speech

Yes, adjectives are often called “describing words,” but that label is loose. Grammar Monster (a popular grammar instruction site) points out that grammarians prefer “modifying” because adjectives also limit, specify, and quantify. Cambridge Dictionary (a premier English-language reference) lists adjectives as one of the four major word classes, alongside nouns, verbs, and adverbs.

Adverbs are the closest cousin — they modify verbs, adjectives, or other adverbs, not nouns. “She runs quickly” (adverb) vs. “a quick run” (adjective). The Grammar Revolution (a grammar teaching site) clarifies: a word is an adjective if it describes a noun or pronoun.

Why ‘describing word’ is a simplification

Calling adjectives “describing words” works for young learners, but it misses their other functions. Merriam-Webster (the leading US dictionary publisher) notes that adjectives can indicate number or extent, ascribe a quality, or distinguish one thing from another. They don’t just describe — they select.

The catch: if you only think of adjectives as “describing,” you might miss demonstrative (this), possessive (my), or interrogative (which) adjectives. Each type serves a different role.

How can I identify an adjective?

Position clues

The most reliable clue is position. Cambridge Dictionary (a premier English-language reference) states that adjectives usually come before nouns or after linking verbs. Dictionary.com (a widely used online dictionary) confirms they are usually placed just before the words they qualify. BYJU’S (an Indian educational platform) adds that adjectives may appear after a verb as well.

• Attributive position: before the noun — “the happy child”
• Predicative position: after a linking verb — “the child is happy“

Morphology clues

Many adjectives carry recognizable suffixes. Grammarly (a widely used digital tool) notes that common endings include -able, -ible, -ful, -less, -ous, -y, -ic, -ive, -al. Examples: comfortable, useful, hopeless, dangerous, rainy, scientific.

Ask: which word tells you what kind or how many?

A simple test from Grammar Monster (a popular grammar instruction site): ask “What kind?” or “How many?” about the noun. The word that answers that question is likely an adjective. For example, in “She bought three ripe bananas,” three answers “How many?” and ripe answers “What kind?”

Another trick: add “very” before the word. If it fits naturally, it’s probably an adjective. “Very hot” works; “very quickly” does not because quickly is an adverb.

The implication: position, suffix, and the “what kind” test together give you a near-foolproof identification method. Practice with a few sentences and you’ll spot adjectives instantly.

Adjectives are the workhorses of specific language. For a student trying to write a vivid sentence, a journalist aiming for precision, or a non-native speaker building vocabulary, the choice is clear: master adjectives, or stay vague. The next time you reach for a noun, ask yourself what kind, how many, or which one — and let the adjective do the heavy lifting.