Learn how to use the comparative “slippier” and superlative “slipperiest” 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 “slipperiest”?

The comparative form of “slipperiest” is “slippier”.

Example

The ice is slippier than the wet floor.

Example

Be careful, the stairs are slippier after it rains.

What is the superlative form of “slipperiest”?

The superlative form of “slipperiest” is “slipperiest”.

Example

Among all the surfaces, the ice is the slipperiest.

Example

The marble floor is known for being the slipperiest when wet.

Why is this expression not used with most, more?

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

Does this expression have an irregular comparative/superlative form?

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

Expressions with similar meanings to “slippier”

A slightly formal way of expressing increased slipperiness

Example

The oil spill made the road more slippery.

slicker

Used to describe something that is smoother and more slippery

Example

The rain made the road slicker, causing cars to skid.

Used to indicate something that is more dangerous due to its slipperiness

Example

The icy sidewalk became more treacherous with each step.

Expressions with similar meanings to “slipperiest”

A slightly formal way of expressing the highest level of slipperiness

Example

The most slippery part of the trail is the steep slope.

Similar to slipperiest, this emphasizes both smoothness and slipperiness

Example

The polished tile floor is the slickest surface in the building.

Used to describe the highest level of slipperiness that poses a danger

Example

The most treacherous area of the road is the sharp turn.

Using than with comparative “slippier”

When using the comparative form slippier to compare two things, you would use than to connect the two parts of the comparison: Example: "The ice is slippier than the wet floor." Here, than is used to show that the slipperiness of 'the ice' is greater than the slipperiness of 'the wet floor'.

How can I use this expression in context?

“slippier” and “slipperiest” can be used in a variety of situations to compare speed.
  • 1Surfaces

    The soap makes the bathtub slippier.

    The soap makes the bathtub slippier.

  • 2Weather Conditions

    The rain made the road slippier for drivers.

    The rain made the road slippier for drivers.

  • 3Outdoor Environments

    The moss-covered rocks are the slippier part of the hiking trail.

    The moss-covered rocks are the slippier part of the hiking trail.

  • 4Flooring

    The polished marble is the slipperiest surface in the house.

    The polished marble is the slipperiest surface in the house.

  • 5Safety Warnings

    The sign warns that the stairs are the slipperiest when wet.

    The sign warns that the stairs are the slipperiest when wet.

Related idioms and phrases

As slippery as an eel

Describing someone or something that is difficult to grasp or hold onto.

Example

He managed to escape from the police's grip, proving he was as slippery as an eel.

Walk on thin ice

To be in a risky or dangerous situation.

Example

She knew that confronting her boss about the issue was like walking on thin ice.

Slip through one's fingers

To lose an opportunity or chance.

Example

The job offer slipped through his fingers because he didn't submit the application on time.

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