Most common
Definitions
- adj. 1
Not perturbable.
Popularity over time
| Word | 1850 → 2019 | Trend |
|---|---|---|
| unperturbable | steady | |
| imperturbable | rising |
Use in printed books, per decade from 1850 to 2019.
By length
- 13 letters
- imperturbable
Not perturbable.
| Word | 1850 → 2019 | Trend |
|---|---|---|
| unperturbable | steady | |
| imperturbable | rising |
Use in printed books, per decade from 1850 to 2019.