What do a.m. and p.m. stand for?


[im-prak-ti-kuh-buh l] /ɪmˈpræk tɪ kə bəl/
not practicable; incapable of being put into practice with the available means:
an impracticable plan.
unsuitable for practical use or purposes, as a device or material.
(of ground, places, etc.) impassable.
(of persons) hard to deal with because of stubbornness, stupidity, etc.
Origin of impracticable
1645-55; im-2 + practicable
Related forms
impracticability, impracticableness, noun
impracticably, adverb
Can be confused
impossible, impracticable, impractical, improbable. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for impracticable
  • The rugged character of the country makes logging of any but timber in bottoms impracticable.
  • In the light of day, it was thought to be impracticable.
  • If this turns out to be politically impracticable, they would allow individuals to deduct their medical costs from taxes.
  • Over rocks and cliffs, through mountain gorges that seemed impracticable, he fled and they followed.
  • But if the foregoing explication of the matter be received, this must be absolutely impracticable.
  • The choice of career was more difficult than the education which had proved impracticable.
  • We may consider a face-to-face interview impracticable if it would cause the payee applicant undue hardship.
British Dictionary definitions for impracticable


incapable of being put into practice or accomplished; not feasible
unsuitable for a desired use; unfit
an archaic word for intractable
Derived Forms
impracticability, impracticableness, noun
impracticably, 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 impracticable

"incapable of being done," 1670s, from assimilated form of in- (1) "not, opposite of" + practicable. Earlier in a sense of "impassable" (1650s).

Online Etymology Dictionary, © 2010 Douglas Harper
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