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# impervious

«impervious» in Mova's school dictionary: **Not letting water, air or anything else pass through: an…** — its meaning for a pupil, its sense in the lessons and examples.

### part of speech

adjective (impervious)

### meaning for a pupil

1) Not letting water, air or anything else pass through: an impervious material. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/I/impervious/#m1)

2) Not affected or bothered by something: impervious to criticism, impervious to the cold. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/I/impervious/#m2)

### sense in the lessons

In science and geography, impervious (or impermeable) rocks and materials do not let water soak in: clay, plastic, concrete; this causes puddles and floods. In stories, a character impervious to teasing or danger is not hurt or moved by it. Phrases: impervious to water, impervious to pain, impervious to criticism, impervious surface.

### examples

- Plastic is impervious to water, so it makes a good raincoat. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/I/impervious/#x1)
- Concrete roads are impervious, so rain runs off into drains. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/I/impervious/#x2)
- We tested which materials were impervious in our science lesson. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/I/impervious/#x3)
- She seemed impervious to the cold in just a T-shirt. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/I/impervious/#x4)
- The superhero was impervious to bullets. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/I/impervious/#x5)
- He was impervious to their teasing and just smiled. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/I/impervious/#x6)

### note

Usually followed by «to»: «impervious to water». Similar: «impermeable», «waterproof». Opposite: «permeable», «porous». In real life no one is completely impervious to hurt; the word describes how it looks.

### Trees and pragmatics

[Every meaning and example of «impervious» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/I/impervious/), each sentence with its dependency tree and frames.