Learn how to use the comparative “hillier” and superlative “hilliest” with example sentences and differences.

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Notes from a Native English Speaker

Comparative adjectives help us to describe how good or bad something is when compared to something else. For example, something is taller than something else. Superlative adjectives help us to describe something as having the most or least of a particular characteristic within a group. This makes it easier and more accurate to talk about and compare things.

What is the comparative form of “hilly”?

The comparative form of “hilly” is “hillier”.

Example

The second mountain is hillier than the first one.

Example

The road becomes hillier as you go further into the countryside.

What is the superlative form of “hilly”?

The superlative form of “hilly” is “hilliest”.

Example

Among all the mountains, Everest is the hilliest.

Example

The roller coaster is known for having the hilliest track.

Why is this expression not used with most, more?

Most and more are generally not used with hilly, hillier, and hilliest. They’re considered regular comparatives and superlatives. The forms 'more hilly' and 'most hilly' are not commonly used because they sound awkward. Instead, hillier and hilliest are the correct and preferred forms to use.

Does this expression have an irregular comparative/superlative form?

Hilly does not have an irregular comparative or superlative form. It follows the standard pattern for forming comparatives and superlatives. So, to summarize: Comparative: HillyHillier Superlative: HillyHilliest

Expressions with similar meanings to “hillier”

A slightly formal way of expressing increased hilliness

Example

The more hilly terrain made it difficult for the cyclists to climb.

Used to describe a hill that has a greater incline

Example

The steeper slope required more effort to climb.

rockier

Used to describe a hill that has more rocks or uneven surfaces

Example

The rockier path made it challenging to hike up the hill.

Expressions with similar meanings to “hilliest”

A slightly formal way of expressing the highest level of hilliness

Example

The most hilly region is known for its breathtaking landscapes.

Used to describe the hill with the greatest incline

Example

The steepest hill in the race tested the runners' endurance.

Used to describe the hill with the most rocks or uneven surfaces

Example

The rockiest trail led to a hidden waterfall.

Using than with comparative “hillier”

When using the comparative form hillier to compare two things, you would use than to connect the two parts of the comparison: Example: "The second mountain is hillier than the first one." Here, than is used to show that the hilliness of the second mountain is greater than the hilliness of the first one.

How can I use this expression in context?

“hillier” and “hilliest” can be used in a variety of situations to compare speed.
  • 1Geography

    The mountain range in that region is hillier than the one in the neighboring country.

    The mountain range in that region is hillier than the one in the neighboring country.

  • 2Roads

    The scenic route is known for its hilliest sections.

    The scenic route is known for its hilliest sections.

  • 3Amusement Parks

    The roller coaster with the hilliest track provides an exhilarating experience.

    The roller coaster with the hilliest track provides an exhilarating experience.

  • 4Hiking

    The trail to the summit is known for its hillier and more challenging sections.

    The trail to the summit is known for its hillier and more challenging sections.

  • 5Landscapes

    The national park is famous for its hilliest landscapes.

    The national park is famous for its hilliest landscapes.

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