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Synonyms

inexcusable

American  
[in-ik-skyoo-zuh-buhl] / ˌɪn ɪkˈskyu zə bəl /

adjective

  1. incapable of being excused or justified.

    Synonyms:
    intolerable, unforgivable, unpardonable

inexcusable British  
/ ˌɪnɪkˈskjuːzəbəl /

adjective

  1. not able to be excused or justified

"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

Other Word Forms

  • inexcusability noun
  • inexcusableness noun
  • inexcusably adverb

Etymology

Origin of inexcusable

1375–1425; late Middle English < Latin inexcūsābilis; in- 3, excuse ( def. ), -able ( def. )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

But there were inexcusable losses along the way, losses that didn’t hinge on one player’s absence — and might’ve singlehandedly changed the conversation over USC’s season.

From Los Angeles Times • Mar. 8, 2026

“I don’t think it’s inexcusable to support two clubs in Paris,” Arnault said.

From The Wall Street Journal • Jan. 4, 2026

The report described February 2020 as a "lost month" and said the government's lack of urgency was "inexcusable".

From BBC • Nov. 21, 2025

The National Young Republican Federation issued a statement saying it was “appalled by the vile and inexcusable language.”

From Salon • Oct. 21, 2025

He was publicly accused of inexcusable failure in the most important race of his career, but he could not defend himself.

From "Seabiscuit: An American Legend" by Laura Hillenbrand