Comparative and Superlative Adjectives: Rules and Examples
Comparatives and superlatives let us compare two or more people, places, or things. Comparatives compare two items; superlatives compare three or more. Most are formed by adding -er or -est, or by using more and most.
Comparative and superlative adjectives
A comparative compares two things. A superlative compares three or more and shows the highest or lowest degree.
| Base | Comparative | Superlative |
|---|---|---|
| tall | taller | tallest |
| happy | happier | happiest |
| beautiful | more beautiful | most beautiful |
Rules for forming them:
| Adjective type | Rule | Example |
|---|---|---|
| 1 syllable | add -er / -est | fast → faster → fastest |
| consonant + -y | change y to i | happy → happier → happiest |
| 2+ syllables | use more / most | modern → more modern → most modern |
Remember: Some adjectives are irregular.
| Base | Comparative | Superlative |
|---|---|---|
| good | better | best |
| bad | worse | worst |
| far | farther | farthest |
Adjectives: equal comparison
We use as + adjective + as to show two things are the same.
| Sentence | Meaning |
|---|---|
| Anna is as tall as her brother. | Same height |
| My coffee is as hot as yours. | Same temperature |
For the negative, use not as + adjective + as.
| Sentence | Meaning |
|---|---|
| Today is not as cold as yesterday. | Less cold |
Adjectives: unequal comparison
To show two things are different, use a comparative + than.
| Sentence | Adjective |
|---|---|
| My brother is taller than me. | taller |
| Paris is more expensive than Lisbon. | more expensive |
For the lowest degree, use less + adjective + than or the superlative with the.
| Sentence | Function |
|---|---|
| This film is less interesting than the book. | Comparison of two |
| Everest is the tallest mountain in the world. | Superlative |
Comparative and superlative adverbs
Short adverbs add -er / -est. Longer adverbs (especially -ly ones) use more / most.
| Base | Comparative | Superlative |
|---|---|---|
| fast | faster | fastest |
| quickly | more quickly | most quickly |
| carefully | more carefully | most carefully |
Remember: Well → better → best and badly → worse → worst are irregular.
Comparing attributes
Use words like much, far, a little, or slightly before the comparative to show how big the difference is.
| Sentence | Meaning |
|---|---|
| London is much bigger than Florence. | Large difference |
| This test is a little easier than the last one. | Small difference |
You can also use the + comparative, the + comparative to show cause and effect.
| Sentence | Meaning |
|---|---|
| The more you practice, the better you become. | One depends on the other |
Forming adverbs from adjectives
Many adverbs are formed by adding -ly to an adjective.
| Adjective | Adverb | Example |
|---|---|---|
| quick | quickly | She answered quickly. |
| careful | carefully | He drives carefully. |
| happy | happily | They played happily. |
Remember: Some words like fast, hard, and late share the same form as adjective and adverb. A few adjectives ending in -ly (like friendly, lovely) are not adverbs.