Learn how to use the comparative “filthier” and superlative “filthiest” 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 “filthy”?

The comparative form of “filthy” is “filthier”.

Example

The kitchen was filthier than I had imagined.

Example

His room is filthier than mine.

What is the superlative form of “filthy”?

The superlative form of “filthy” is “filthiest”.

Example

That public restroom is the filthiest I've ever seen.

Example

The garbage can in the alley is known for being the filthiest in town.

Why is this expression not used with most, more?

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

Does this expression have an irregular comparative/superlative form?

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

Expressions with similar meanings to “filthier”

Used to describe something that is covered in dirt or grime

Example

The dirtier the dishes, the longer it takes to clean them.

grimier

Similar to dirtier, emphasizing a sense of dirtiness and grime

Example

The mechanic's hands were grimier than ever after working on the car.

A slightly formal way of expressing increased dirtiness

Example

The more unclean the environment, the higher the risk of disease.

Expressions with similar meanings to “filthiest”

Similar to filthiest, this emphasizes a high level of dirt and grime

Example

The dirtiest part of the house is usually the basement.

Used to describe something that is extremely dirty and covered in grime

Example

The old factory was the grimiest building in the city.

A slightly formal way of expressing the highest level of dirtiness

Example

The most unclean areas of the city are often the poorest neighborhoods.

Using than with comparative “filthier”

When using the comparative form filthier to compare two things, you would use than to connect the two parts of the comparison: Example: "Her room is filthier than mine." Here, than is used to show that the level of filth in 'her' room is greater than the level of filth in 'mine'.

How can I use this expression in context?

“filthier” and “filthiest” can be used in a variety of situations to compare speed.
  • 1Living Spaces

    The abandoned house was filthier than anyone could have imagined.

    The abandoned house was filthier than anyone could have imagined.

  • 2Public Areas

    The subway station is known for being one of the filthiest places in the city.

    The subway station is known for being one of the filthiest places in the city.

  • 3Personal Hygiene

    After a long hike, their clothes were filthier than ever.

    After a long hike, their clothes were filthier than ever.

  • 4Environmental Conditions

    The polluted river is considered one of the filthiest bodies of water in the country.

    The polluted river is considered one of the filthiest bodies of water in the country.

  • 5Neglected Areas

    The neglected park was the filthiest in the neighborhood.

    The neglected park was the filthiest in the neighborhood.

Related idioms and phrases

Dirty as a pigsty

Extremely dirty or messy.

Example

After a week of neglect, the kitchen was dirty as a pigsty.

Filthy rich

Describing someone who is extremely wealthy.

Example

The billionaire was known for being filthy rich.

Dirty laundry

Refers to someone's private matters or secrets that they would rather keep hidden.

Example

She didn't want to air her dirty laundry in public.

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