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# impermeable

adjective (impermeable, more impermeable)

«impermeable» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

1. Impermeable means not letting water, air or other liquids and gases pass through. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/I/impermeable/#m1)
2. (figurative) Impermeable can describe a person who is not affected by something, like criticism. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/I/impermeable/#m2)

### In the lessons

In science lessons on materials, students test which materials are permeable (let water through) and which are impermeable, for example plastic, glass and rubber. In geography, clay and granite are impermeable rocks, so rain runs off them and causes floods. A raincoat must be impermeable. Phrases: «impermeable to water», «impermeable rock», «impermeable layer».

### Examples

- A raincoat is made of impermeable material. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/I/impermeable/#x1)
- Clay is impermeable, so water collects on top of it. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/I/impermeable/#x2)
- We tested paper, foil and cotton to see which was impermeable. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/I/impermeable/#x3)
- The pond liner is impermeable to water. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/I/impermeable/#x4)
- Glass is impermeable, but a sponge is not. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/I/impermeable/#x5)
- Water ran off the impermeable concrete into the drains. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/I/impermeable/#x6)
- She seemed impermeable to the teasing and just smiled. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/I/impermeable/#x7)

### Note

Opposite: «permeable» (lets liquids through). Similar words: «waterproof», «watertight». Prefix «im-» means «not». Followed by «to»: «impermeable to water».

## On Mova

- [Trees and pragmatics of «impermeable» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/I/impermeable/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«impermeable» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/impermeable.html) on Mova free.