variants:
or less commonly impassible
Definition of impassable
: incapable of being passed, traveled, crossed, or surmounted
Test Your Vocabulary
Which Word Does Not Belong?
-
- Which of these words does not mean "nonsense"?

Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share impassable
Time Traveler for impassable
The first known use of impassable was in 1562
See more words from the same year