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

Hynes won’t address or comment on Nyquist (who has been abysmal for 5 games, the worst player in the entire playoffs) and trots him out there in OT after that inexcusable offside, but Zeev gets benched quickly and Rossi gets demoted to 4th line and stays there. —Michael Russo, New York Times, 30 Apr. 2025

Despite his character Cal Jacobs’s inexcusable behavior on the show, Dane has managed to capture the humanity of the character’s internal battle with his sexuality throughout the first two seasons. —Emily Tannenbaum, Glamour, 11 Apr. 2025

The yelling is absolutely inexcusable and will indeed continue this, causing more harm and feelings of abandonment. —David Faris, MSNBC Newsweek, 11 Apr. 2025

The sum is that Marlins spending by this owner is an unnecessary and inexcusable disgrace. —Greg Cote, Miami Herald, 21 Mar. 2025

Word History

Etymology

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

First Known Use

15th century, in the meaning defined above

Rhymes for inexcusable

• diffusible
• excusable
• infusible
• reusable
• unusable
• fusible
• usable

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