Grammar Guide

Rules, patterns and examples grouped by level — from A1 basics to advanced structures.

English Comparative Adjectives

What is it?

Comparative adjectives are used to compare two people, things, places, or situations.

They show that one person or thing has more or less of a quality than another.

Common comparative forms include:

Adjective Comparative
tall taller
small smaller
fast faster
happy happier
interesting more interesting
expensive more expensive
good better
bad worse

The word than is often used after a comparative adjective.

Tom is taller than Ben.

When to use

Use comparative adjectives when comparing two people or things.

  • This car is faster than that car.
  • My room is smaller than yours.

Use them when comparing two places.

  • Calgary is colder than Vancouver.

Use them when comparing two situations.

  • Today is busier than yesterday.

Use more + adjective with many longer adjectives.

  • This book is more interesting than that one.

Use less + adjective to show a lower degree of a quality.

  • This restaurant is less expensive than the other one.

Structure

For many short adjectives, add -er.

Subject + be + adjective-er + than + noun/pronoun

  • tall → taller
  • fast → faster
  • old → older

Example:

Anna is taller than Maria.

If an adjective ends in -e, add only -r.

  • nice → nicer
  • large → larger

If a short adjective ends in one vowel + one consonant, the final consonant is often doubled.

  • big → bigger
  • hot → hotter

If an adjective ends in consonant + -y, change y to i and add -er.

  • happy → happier
  • easy → easier

For many longer adjectives, use more.

Subject + be + more + adjective + than + noun/pronoun

  • more beautiful
  • more comfortable
  • more important

Example:

This chair is more comfortable than that one.

To show a lower degree, use less.

Subject + be + less + adjective + than + noun/pronoun

Example:

This task is less difficult than the last one.

Some common adjectives have irregular comparative forms.

Adjective Comparative
good better
bad worse
far farther / further

Examples

  1. My brother is taller than me.
  2. This bag is cheaper than that one.
  3. Today is hotter than yesterday.
  4. Her new apartment is bigger than her old one.
  5. This exercise is easier than the previous one.
  6. The blue jacket is more expensive than the black one.
  7. This movie is more interesting than the first one.
  8. My English is better than last year.
  9. The traffic is worse this morning.
  10. This route is less dangerous than the other route.

Exceptions

Some adjectives have irregular comparative forms and do not use the normal -er or more pattern.

  • good → better
  • bad → worse
  • far → farther / further

Do not normally use both more and -er together.

Use:

taller

not:

more taller

Some two-syllable adjectives can use either form depending on the adjective and usage.

For example:

  • cleverer / more clever
  • quieter / more quiet

Common mistakes

  1. Incorrect: She is more taller than me. Correct: She is taller than me. Explanation: Do not use both more and -er with the same adjective.

  2. Incorrect: This book is interestinger than that one. Correct: This book is more interesting than that one. Explanation: Longer adjectives usually use more instead of -er.

  3. Incorrect: My car is fast than yours. Correct: My car is faster than yours. Explanation: Use the comparative form when comparing two things.

  4. Incorrect: He is more good at tennis than me. Correct: He is better at tennis than me. Explanation: The comparative form of good is better.

  5. Incorrect: Today is badder than yesterday. Correct: Today is worse than yesterday. Explanation: The comparative form of bad is worse.

  6. Incorrect: This box is biger than that one. Correct: This box is bigger than that one. Explanation: Double the final consonant in big before adding -er.

  7. Incorrect: This test is easyer than the last one. Correct: This test is easier than the last one. Explanation: With adjectives ending in consonant + y, change y to i before adding -er.