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[in-ik-skyoo-zuh-buh l] /ˌɪn ɪkˈskyu zə bəl/
incapable of being excused or justified.
Origin of inexcusable
late Middle English
1375-1425; late Middle English < Latin inexcūsābilis; see in-3, excusable
Related forms
inexcusability, inexcusableness, noun
inexcusably, adverb
unpardonable, unforgivable, intolerable. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for inexcusable
  • It is inexcusable that so many athletes do not graduate.
  • These pay-day style car dealerships are really inexcusable.
  • Perhaps this inexcusable failure will spur some action to improve their safety.
  • It is inexcusable that such a glaring error found its way past the scrutiny of your editors.
  • Many member of the public are raging at me for failing to point out what they see as an inexcusable case of scientific fraud.
  • One would think it inexcusable that public policy has exacerbated this trend.
  • My behavior was inexcusable and caused a great commotion.
  • So to say merely that the principles are used in chrome plating is inexcusable.
  • If confirmed, his actions are no excuse, and inexcusable.
  • Science to rush into publication is quite inexcusable.
British Dictionary definitions for inexcusable


not able to be excused or justified
Derived Forms
inexcusability, inexcusableness, noun
inexcusably, 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 inexcusable

early 15c., from Latin inexcusabilis, from in- "not, opposite of" (see in- (1)) + excusabilis, from excusare (see excuse). Related: Inexcusably.

Online Etymology Dictionary, © 2010 Douglas Harper
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