incapable of being excused or justified.

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 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for inexcusably

unjustifiably, badly, crudely, wrongly

Examples from the Web for inexcusably

Contemporary Examples of inexcusably

  • Such approaches errantly and inexcusably afford Israel a monopoly on defining reality.

    The Daily Beast logo
    Levy is Right

    Yousef Munayyer

    July 13, 2012

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



not able to be excused or justified
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.

Online Etymology Dictionary, © 2010 Douglas Harper