inexcusable

adjective

in·​ex·​cus·​able ˌi-nik-ˈskyü-zə-bəl 

: impossible to excuse or justify

inexcusable rudeness

inexcusableness noun

inexcusably

ˌi-nik-ˈskyü-zə-blē 

adverb

Synonyms

• indefensible
• inexpiable
• insupportable
• unforgivable
• unjustifiable
• unpardonable
• unwarrantable

Examples of inexcusable in a Sentence

spitting at a teacher is inexcusable behavior and will be severely punished

Recent Examples on the Web

If Dallas’ claim to fame is its forward depth, those kinds of slumps are inexcusable. —Dom Luszczyszyn, The Athletic, 10 Jan. 2025

Non-timely filings are inexcusable and (forced) resignations often follow. —Noah Barsky, Forbes, 6 Jan. 2025

But overall there is a mass consensus that putting the country under martial law was an inexcusable action, no matter what motivated the president to do so. —Leah Sarnoff, ABC News, 29 Dec. 2024

Buying a clock Chicago has now had two of the most inexcusable end-of-game clock management situations in the league with two different head coaches on the sideline. —Josh Kendall, The Athletic, 31 Dec. 2024

Word History

Etymology

Middle English, from Latin inexcusabilis, from in- + excusabilis excusable

First Known Use

15th century, in the meaning defined above

Kids Definition

inexcusable

adjective

in·​ex·​cus·​able ˌin-ik-ˈskyü-zə-bəl 

: too bad to be excused : not justifiable

inexcusable rudeness

inexcusably

-blē 

adverb