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See more synonyms for inexcusable on Thesaurus.com
  1. incapable of being excused or justified.
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Origin of inexcusable

1375–1425; late Middle English < Latin inexcūsābilis; see in-3, excuse, -able
Related formsin·ex·cus·a·bil·i·ty, in·ex·cus·a·ble·ness, nounin·ex·cus·a·bly, adverb

Synonyms for inexcusable

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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for inexcusably

unjustifiably, badly, crudely, wrongly

Examples from the Web for inexcusably

Contemporary Examples of inexcusably

Historical Examples of inexcusably

  • What have I to hope for from you when you treat a stranger so inexcusably?

    In Apple-Blossom Time

    Clara Louise Burnham

  • His nature, considering what a wife he has got, is inexcusably meek and patient.

  • It would be inexcusably foolish on my part to speak too plainly, just yet.

    The Fallen Leaves

    Wilkie Collins

  • He had all the air of one who has been grossly and inexcusably deceived.


    Arthur Cheny Train

  • This afternoon you grossly and inexcusably insulted my daughter.

    The Guarded Heights

    Wadsworth Camp

British Dictionary definitions for inexcusably


  1. not able to be excused or justified
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Derived Formsinexcusability or inexcusableness, nouninexcusably, 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

Word Origin and History for inexcusably



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

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Online Etymology Dictionary, © 2010 Douglas Harper