What is a Comparative Adjective? Meaning, Types, & Examples

Quick Overview by GrammarGramps:

• A comparative adjective compares two things by showing a higher or lower degree of a quality, using either “-er” or “more” depending on the adjective.
• There are three types of comparative adjectives: regular comparatives with “-er,” regular comparatives with “more,” and irregular comparatives that change form entirely.
• There are six spelling rules that determine how a comparative adjective is formed, and the base adjective’s length and ending determine which rule applies.

Introduction to Comparative Adjectives

A comparative adjective is used to add the element of comparison in a sentence. For example, a normal adjective like “big” is used to denote large size. But, if there is a need to compare the sizes of two or more objects, we use words like “bigger” to show that one is larger than the other.

Comparative adjectives are also known as adjectives of comparison.Together with superlative adjectives, they form the two main types of “gradable adjectives.”

In this guide by GrammarGramps, we’re going to tell you about the definition of comparative adjectives and some common examples, their types, how they are formed, and how they are different from superlative adjectives.

Let’s get started.

Short Definition of Comparative Adjectives + Detailed Explanation

Here is a short and formal definition of comparative adjectives:

A comparative adjective compares two nouns by showing a higher or lower degree of a quality. Comparative adjectives usually end in “-er” or use “more” before the adjective.

The actual definition of adjectives isn’t that difficult. What makes them tricky to learn is their variations, i.e., how they are formed in different ways.

Most of the time, an adjective can be turned into its comparative formed by adding “-er” at the very end. However, there are many cases where this isn’t possible. In those cases, adding the word “more” is suitable. Don’t worry though. We’ll get into this in detail in one of the later headings.

For now, let’s do a detailed explanation on these types of adjectives with an example scenario (like we usually do at GrammarGramps).

An Example Scenario to Understand Comparative Adjectives

So, let’s say Jack went to his other uncle’s farm. This one was not in Siberia. This was in the sweltering African desert. Jack spent quite a bit of time on the African farm, punctuating his stay with various unfortunate incidents that he would bring wherever he would go.

After his trip, he went back. His uncle asked him to describe life on the African farm as compared to the one in Siberia. Here is what their conversation looked like.

Uncle: Tell me, nephew. Was life better at the African farm than here? (In this sentence, the word “better” is a comparative adjective.)

Jack: Not exactly. Compared to here, it was hotter over there, and the work was more difficult. (In this statement, Jack uses hotter to compare the heat between the two farms and more difficult to describe the comparatively harder tasks he had to perform over in Africa.)

Uncle: But, the animals were friendlier, were they not?

Jack:  The farm animals, yes. But, I ran into quite a few animals that weren’t supposed to be on the farm at all. They were wilder and more ferocious.

Uncle: Ferocious?

Jack: Yes, given that they included three lions, two rhinos, and an elephant. There was also a peculiar giraffe.

In this back and forth, we can see that there are many comparative adjectives that Jack uses to describe how the African farm was different than the one in Siberia.

Types of Comparative Adjectives

Now that we have a good understanding of what comparative adjectives are, let’s talk about their types. There are three main types of comparative adjectives, which include regular comparatives with “-er,” regular comparatives with “more,” and irregular comparatives.

Regular Comparative Adjectives (with “-er”)

This is the most common type of comparative adjectives. These are formed by simply adding “-er” to the end of the base adjective. Most short adjectives, typically one syllable, follow this pattern.

Notice that “hot” doubles the final consonant before adding “-er.” This is a small spelling rule worth remembering: if a one-syllable adjective ends in a consonant-vowel-consonant pattern, you double the final consonant.

Going back to Jack, when he told his uncle it was “hotter” on the African farm, he was using a regular comparative adjective formed with “-er.”

Regular Comparative Adjectives (with “more”)

Longer adjectives, typically two syllables or more, cannot comfortably take “-er” at the end. They would sound clunky and unnatural. Instead, the word “more” is placed before the adjective to form the comparative.

When Jack said the work was “more difficult” and the animals were “more ferocious,” he was using this type. Saying “difficulter” or “ferociouserr” would have sounded ridiculous.

Irregular Comparative Adjectives

Some adjectives do not follow either of the patterns above. Instead, they change form entirely when used comparatively. These are known as irregular comparative adjectives and they simply have to be memorized.

When Jack’s uncle asked if life was “better” at the African farm, he was using an irregular comparative adjective. “Better” does not come from adding “-er” to “good.” It is a completely different word that happens to serve as “good’s” comparative form.

These are the trickiest of the three types, but fortunately there aren’t too many of them in English.

Examples of Comparative Adjectives in English

Below are some common examples of comparative adjectives in English. Where we have dedicated guides on specific words, we have linked them for you to explore further.

1. Beautiful → more beautiful (uses “more”)
2. Good → better (irregular)
3. Afraid → more afraid (uses “more”)
4. Aware → more aware (uses “more”)
5. Tall → taller (adds “-er”)
6. Difficult → more difficult (uses “more”)
7. Bad → worse (irregular)
8. Far → further / farther (irregular)
9. Strong → stronger (adds “-er”)

Rules for Forming Comparative Adjectives

Comparative adjectives are not formed the same way every time. The spelling of the base adjective determines which rule applies. There are six rules to know, and once you understand the logic behind each one, they become much easier to remember.

Rule 1: One-Syllable Adjectives

For most adjectives with one syllable, simply add “-er” to the end.

What’s the logic behind this rule? Short adjectives are compact enough to take a suffix without becoming awkward to say. Adding “-er” keeps the word short and easy to pronounce.

• tall → taller
• cold → colder
• kind → kinder
• smart → smarter

Rule 2: One-Syllable Adjectives Ending in “-e”

If the adjective already ends in “-e,” just add “-r.” Adding a full “-er” would give you a double “e,” which looks wrong and sounds redundant.

What’s the logic behind this rule? The “-e” is already there. You only need the “-r” to complete the comparative suffix.

• large → larger
• free → freer
• wise → wiser
• fine → finer

Rule 3: One-Syllable Adjectives Ending in Consonant-Vowel-Consonant

This is the one that catches people off guard. If a one-syllable adjective ends in a consonant-vowel-consonant pattern, double the final consonant before adding “-er.”

What’s the logic behind this rule? Without doubling the consonant, the vowel sound changes. “Biger” would rhyme with “tiger.” Doubling the consonant keeps the short vowel sound intact.

• big → bigger
• thin → thinner
• hot → hotter
• sad → sadder

Jack found out the hard way on the African farm that the days were considerably hotter than he had expected. He did not double-check the weather forecast before packing.

Rule 4: Adjectives Ending in “-y”

For adjectives ending in “-y,” whether one or two syllables, change the “y” to “i” and then add “-er.”

What’s the logic behind this rule? In English, a “y” at the end of a word followed by a suffix typically converts to “i.” This is a consistent spelling pattern across many word forms, not just adjectives.

• dry → drier
• happy → happier
• heavy → heavier
• likely → likelier

Rule 5: Two-Syllable Adjectives Ending in “-er,” “-ow,” or “-le”

Two-syllable adjectives ending in “-er” or “-ow” can take “-er” at the end without any spelling changes. Those ending in “-le” just need an “-r.”

What’s the logic behind this rule? These endings already have a soft, open sound that blends naturally with the comparative suffix. No doubling or letter changes are needed.

• clever → cleverer
• narrow → narrower
• shallow → shallower
• simple → simpler
• gentle → gentler

Rule 6: Longer Adjectives Using “More”

For adjectives with two or more syllables that don’t fall into the categories above, placing “more” before the adjective is the correct approach. Adding “-er” to these words would make them difficult to say and sound unnatural.

What’s the logic behind this rule? Longer adjectives are already complex enough. Attaching a suffix on top of that creates words that are clunky to pronounce. “More” does the same job without mangling the word.

• difficult → more difficult
• beautiful → more beautiful
• comfortable → more comfortable
• intelligent → more intelligent
• ferocious → more ferocious

Quick Reference: Rules at a Glance

Common Mistakes When Forming Comparative Adjectives

Here is a table that describes some of the common mistakes that people can make with comparative adjectives, along with examples showing incorrect and correct usage.

Comparative Adjectives vs Superlative Adjectives

Comparative and superlative adjectives are closely related, and it is easy to mix them up. Both are forms of gradable adjectives, but they serve different purposes in a sentence.

A comparative adjective compares two things. A superlative adjective identifies the highest or lowest degree of a quality among three or more things.

Think of it this way: comparative says “this one is more than that one.” Superlative says “this one is the most of all of them.”

Here is a simple table to show the difference:

The key rule to remember is this: use the comparative when comparing two things, and use the superlative when comparing three or more.

Here is how that looks in practice:

• Jack’s African farm was hotter than the one in Siberia. (Two farms, comparative)
• Of all the farms Jack had visited, the African one was the hottest. (Multiple farms, superlative)

Getting this wrong is one of the most common adjective mistakes in English. Saying “Jack’s farm was the hottest of the two” is technically incorrect because superlatives are reserved for comparisons involving three or more. With only two things being compared, “hotter” is always the right choice.

Related Resources on GrammarGramps

Now that you have a solid understanding of comparative adjectives, here are some related guides on GrammarGramps that you might find useful:

• What is an Adjective? (The main guide on adjectives. A good place to start if you want to build a strong foundation.)
• What are Gradable and Non-Gradable Adjectives? (Comparative adjectives are a form of gradable adjective. This guide explains the distinction in detail.)
• What is an Absolute Adjective? (Absolute adjectives cannot be used comparatively. Worth knowing about once you understand how comparatives work.)
• What is an Extreme Adjective? (Extreme adjectives are another type that behaves differently in comparative constructions.)
• Order of Adjectives (When using multiple adjectives together, it is important to follow the correct order. This guide covers the royal order of adjectives in detail.)
• List of Adjectives (A comprehensive A to Z list of 100+ adjectives with meanings and types, useful for finding adjectives to practice your comparatives with.)
• What Part of Speech is “Alive?” (A guide on the word alive, which explains its nature as a non-gradable adjective that doesn’t technically have a comparative form.)

Frequently Asked Questions About Comparative Adjectives