unforgivable

too bad to be excused or justified an unforgivable crime that society must seek just punishment for Synonyms indefensible, inexpiable, insupportable, inexcusable, unjustifiable, unpardonable, unwarrantableRelated Words insufferable, intolerable, unbearable, unendurable; abominable, atrocious, heinous, monstrous, outrageous, scandalous, shocking; egregious, flagrant, glaring, gross, rank; unacceptable, untenable; black, evil, iniquitous, vicious, wicked; base, contemptible, deplorable, despicable, dirty, execrable, ignoble, reprobate, vile, wretched; cruel, nasty; blamable, blameworthy, censurable, reprehensible; banned, barred, condemned, disallowed, forbidden, interdicted, outlawed, prohibited, proscribedNear Antonyms acceptable, tolerable; authorized, legal, permissible; allowed, permitted, tolerated; approved, endorsed (also indorsed), sanctioned; abetted, encouraged, promoted, supported; ethical, good, moral, virtuousAntonyms defensible, excusable, forgivable, justifiable, pardonable, venial