Synonyms for impervious
- adjective
All synonyms
Adjective
1. Impermeable
Other
resistant, proof, cast-iron, soundproof, imperviable, unpervious dated, impervial dated
Definitions
- adj. 1
Unaffected or unable to be affected by something.
The man was completely impervious to the deception we were trying.
Related words
- Word family
- imperviousness
Example sentences
- impenetrable The wall appeared to be smooth and impenetrable.
- impassable The roads are impassable because of the heavy snow.
- impermeable He glazed his pottery to make it impermeable to water.
- resistant Many are convinced that he is resistant to advice.
Popularity over time
| Word | 1850 → 2019 | Trend |
|---|---|---|
| impervious | falling | |
| impenetrable | rising | |
| impassable | steady | |
| impermeable | falling |
Use in printed books, per decade from 1850 to 2019.
By length
- 5 letters
- proof1
- 9 letters
- resistant3, impervial
- 10 letters
- impassable4, soundproof, unpervious
- 11 letters
- impermeable, imperviable
- 12 letters
- impenetrable5
The small number after each word is its number of syllables (resistant3 = 3 syllables).