Synonyms of unforgivable

unforgivable

adjective

ˌən-fər-ˈgi-və-bəl 

as in unacceptable

too bad to be excused or justified

an unforgivable crime that society must seek just punishment for

they considered their friend's selfish behavior unforgivable

Synonyms & Similar Words

• unacceptable
• inexcusable
• unpardonable
• outrageous
• unjustifiable
• indefensible
• unwarrantable
• vicious
• insupportable
• inexpiable
• evil
• unbearable
• heinous
• intolerable
• abominable
• egregious
• atrocious
• cruel
• monstrous
• shocking
• glaring
• insufferable
• unendurable
• scandalous
• gross
• flagrant
• prohibited
• condemned
• deplorable
• vile
• wicked
• untenable
• despicable
• iniquitous
• contemptible
• reprehensible
• forbidden
• ignoble
• execrable
• wretched
• blameworthy
• dirty
• nasty
• base
• rank
• outlawed
• barred
• censurable
• blamable
• disallowed
• reprobate
• proscribed
• banned
• interdicted

Antonyms & Near Antonyms

• excusable
• justifiable
• acceptable
• pardonable
• tolerable
• defensible
• legal
• permissible
• forgivable
• permitted
• venial
• authorized
• approved
• endorsed
• moral
• good
• sanctioned
• ethical
• supported
• promoted
• tolerated
• virtuous
• allowed
• encouraged
• abetted

Example Sentences

Recent Examples of unforgivable

As in Gaza, the recent bombing of Lebanon has been indiscriminate, with unforgivable civilian casualties. — Sun Sentinel Editorial Board, Sun Sentinel, 17 Apr. 2026

Emma’s intentions are unforgivable, says Rachel, whose cousin was injured in a shooting. — Shirley Li, The Atlantic, 8 Apr. 2026

There were some unforgivable mistakes—like releasing versions of the Epstein files with unredacted nude images of young women or possibly teenage girls. — Emma Hinchliffe, Fortune, 3 Apr. 2026

Locally, Israel has taken advantage of the strategically unforgivable decision by Hezbollah to join the fighting on behalf of its Iranian patrons. — Michael M. Rosen, The Washington Examiner, 13 Mar. 2026