Synonyms for impenetrableness
- noun
Most common
Definitions
- n. 1
The quality of being impenetrable.
Popularity over time
| Word | 1850 → 2019 | Trend |
|---|---|---|
| impenetrableness | steady | |
| impenetrability | rising |
Use in printed books, per decade from 1850 to 2019.
By length
- 15 letters
- impenetrability