Try Our Apps


Gobble up these 8 terms for eating


[im-pas-uh-buh l, -pah-suh-] /ɪmˈpæs ə bəl, -ˈpɑ sə-/
not passable; not allowing passage over, through, along, etc.:
Heavy snow made the roads impassable.
unable to be surmounted:
an impassable obstacle to further negotiations.
(of currency) unable to be circulated:
He tore the bill in half, making it impassable.
Origin of impassable
1560-70; im-2 + passable
Related forms
impassability, impassableness, noun
impassably, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the Web for impassable
Contemporary Examples
Historical Examples
  • The old trappers tell me that the mountains are impassable even in the fall.

    54-40 or Fight Emerson Hough
  • It was, to her, like an impassable rampart, which shut off her past.

  • In this case, guilt would place for ever an impassable gulf between us.

    Captain Kyd (Vol 1 of 2) Jonathon Holt Ingraham
  • In the same way too the Parthenius is impassable, which you will reach if you cross the Halys.

    Anabasis Xenophon
  • The mountain is impassable for armies except through the gaps that occur every twenty to thirty miles.

    From Bull Run to Appomattox Luther W. Hopkins
  • And on one side of her the flames commingled so as to be impassable.

    The Golden Woman Ridgwell Cullum
British Dictionary definitions for impassable


(of terrain, roads, etc) not able to be travelled through or over
Derived Forms
impassability, impassableness, noun
impassably, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for impassable

"that cannot be passed," 1560s, from im- + passable.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source

Word of the Day

Word Value for impassable

Scrabble Words With Friends

Nearby words for impassable