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90s Slang You Should Know


[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
First recorded in 1560-70; im-2 + passable
Related forms
impassability, impassableness, noun
impassably, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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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
  • When the rains commence, the roads are impassable, and all trucking ceases.

    The Western World W.H.G. Kingston
  • In this case, guilt would place for ever an impassable gulf between us.

    Captain Kyd (Vol 1 of 2) Jonathon Holt Ingraham
  • A single glance into this great fissure convinced them that it was impassable.

    The Plant Hunters Mayne Reid
  • 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
  • Man the object is separated by an impassable gulf from man the subject.

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
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Word Origin and History for impassable

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

Online Etymology Dictionary, © 2010 Douglas Harper
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