Synonyms for impermeable
- adjective
Most common
water-tight impenetrable impervious impassable sealed nonpermeable
Definitions
- adj. 1
Impossible to permeate.
Related words
- Word family
- impermeableness impermeability impenetrable
Example sentences
- impenetrable The wall appeared to be smooth and impenetrable.
- impervious Mark almost became impervious to toxic co-workers.
- impassable The roads are impassable because of the heavy snow.
- sealed If you have nothing to say, keep your lips sealed.
Popularity over time
| Word | 1850 → 2019 | Trend |
|---|---|---|
| impermeable | falling | |
| impenetrable | rising | |
| impervious | falling | |
| impassable | steady | |
| sealed | falling |
Use in printed books, per decade from 1850 to 2019.
By length
- 6 letters
- sealed1
- 10 letters
- impervious4, impassable4
- 12 letters
- impenetrable5, nonpermeable
The small number after each word is its number of syllables (impervious4 = 4 syllables).
In other languages
- Français
- imperméable
- Deutsch
- wasserundurchlässig