im·​pass·​able (ˌ)im-ˈpa-sə-bəl How to pronounce impassable (audio)
variants or less commonly impassible
: incapable of being passed, traveled, crossed, or surmounted
impassability noun
impassableness noun
impassably adverb

Examples of impassable in a Sentence

The roads were made impassable by the flood. the road was impassable until snowplows cleared it
Recent Examples on the Web Officials urged residents to keep off roads, as many were impassable and traffic lights were expected to be out for much of the night. TIME, 17 May 2024 Image Many roads and streets were impassable and traffic lights were not working across Houston. The New York Times, New York Times, 17 May 2024 See all Example Sentences for impassable 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'impassable.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1562, in the meaning defined above

Time Traveler
The first known use of impassable was in 1562

Dictionary Entries Near impassable

Cite this Entry

“Impassable.” Dictionary, Merriam-Webster, Accessed 30 May. 2024.

Kids Definition


im·​pass·​able (ˈ)im-ˈpas-ə-bəl How to pronounce impassable (audio)
: impossible to pass, cross, or travel over
roads made impassable by the hurricane
impassability noun

More from Merriam-Webster on impassable

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