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Synonyms

inexcusable

American  
[in-ik-skyoo-zuh-buhl] / ˌɪn ɪkˈskju 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

Etymology

Origin of inexcusable

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

Explanation

Something inexcusable doesn't have an excuse, justification, or reason. Inexcusable things are horribile and unforgivable. Getting sick is an excuse for missing school. When an action is inexcusable, there is no excuse for it. Inexcusable actions and words don't have a justification. Also, this word is used for things that are just plain awful. Most people would say crimes like murder are inexcusable. If a good friend lied to you, you might consider that inexcusable. This is a harsh word for things that we can't forgive or condone.

Keep Reading on Vocabulary.com

Vocabulary lists containing inexcusable

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.

See Examples For:

“As such, I accept responsibility for those inexcusable errors, and offer no excuse, only an apology.”

From Los Angeles Times Aug. 19, 2026

For medical professionals to be unable to access all the images to inform a patient’s care is inexcusable.

From MarketWatch May 4, 2026

Her representatives have called the incident "completely inexcusable".

From BBC Apr. 30, 2026

Following her arrest, a representative for the singer described the incident as "completely inexcusable" and said Spears would "take the right steps and comply with the law."

From Barron's Apr. 30, 2026

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

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