Comparison of Adjectives: -er and -est Forms
Comparing people and things is something we do every day — at work, at home, or even while shopping. But using the wrong form can change the meaning entirely. For example, saying "This phone is cheaper" vs. "This phone is the cheapest" tells two different stories. Let’s learn how to use -er and -est forms correctly so your comparisons are always clear and accurate.
Use -er to compare two people or things (typically for short, one-syllable adjectives; use more for longer adjectives, e.g., more beautiful). When the second person or thing is explicitly mentioned, pair it with than. Note: for adjectives ending in a consonant–vowel–consonant pattern (e.g., big → bigger), double the final consonant; for adjectives ending in -y (e.g., heavy → heavier), change y to i before adding -er.
Use -est to compare one person or thing with a whole group (typically for short, one-syllable adjectives; use most for longer adjectives, e.g., the most beautiful). Apply the same spelling changes as with -er (e.g., biggest, heaviest).
Comparing Two People or Things (-er)
When you compare two people, objects, or ideas, add -er to the adjective and use than to show the contrast. This is called the comparative form.
✅ Correct: Aman is shorter than Jiya.
✅ Correct: This laptop is lighter than that one.
❌ Incorrect: She is taller her sister.
(Missing than — required when the object of comparison is explicitly mentioned.)
Comparing Within a Group (-est)
When you compare one person or thing with all others in a group, use the -est form. This is called the superlative form. Remember to use the before the adjective in this case.
✅ Correct: February is the shortest month of the year.
✅ Correct: She is the fastest runner in the team.
❌ Incorrect: He is tallest in the class.
(Missing the — required in this context. Note: the is not used after possessive adjectives, e.g., "He is my oldest brother.")
Common Mistakes
| ❌ Incorrect | ✅ Correct |
|---|---|
| She is taller as me. | She is taller than me. (or: She is taller than I am — formal) |
| This is most cheapest phone. | This is the cheapest phone. |
| He is most tallest. | He is the tallest. (Do not combine 'most' with '-est'.) |
Remember the 2 T’s: Two things → -er + than | The group → the + -est
✏️ Quick Practice — Fill in the blanks with the correct comparative or superlative form
- I am tall______ than my brother.
- January is the cold______ month of the year.
- January is cold______ than December.
- An ant is small______ than an elephant.
- My sister is smart______ than I am.
- Jay was the fast______ person in the race.
- The blue whale is the heav______ animal.
- Lead is heav______ than iron.
- An elephant is big______ than a man.
- The sun is bright______ than the moon.
Answers: 1. er | 2. est | 3. er | 4. er | 5. er | 6. est | 7. iest | 8. ier | 9. ger | 10. er
Some common adjectives are irregular — they do not follow the -er / -est pattern:
✅ good → better → best (not "gooder / goodest")
✅ bad → worse → worst (not "badder / baddest")
✅ far → farther / further → farthest / furthest
✅ many/much → more → most
✅ little → less → least
Always use the irregular form for these words.
Summary
Comparing adjectives is simple once you remember the general pattern: two things use -er + than, and a group uses the + -est. Keep in mind that some adjectives are irregular (e.g., good → better → best) and do not follow this pattern.
Key takeaway: Always check whether you are comparing two items or one item with a group, whether the adjective requires a spelling change (-y → -i, consonant doubling), and whether the adjective is irregular. This will help you choose the correct form every time.