Unpardonable

Origin

See un- and pardon.

Full definition of unpardonable

Adjective

1. impossible to pardon; impossible to excuse or justify
• 1900, Gilbert Parker, An Unpardonable Liar:"I can understand your being wicked," she said keenly, "but not your being cowardly. That is and was unpardonable."
• 1912, Ralph Connor, Corporal Cameron of the Northwest Mounted Police:To lose a game was bad enough, but to round on a comrade was unpardonable; while to lose from the game a half-back of Cameron's calibre was unthinkable.

Synonyms

• inexcusable, unforgivable, unremittable
• unjustifiable, indefensible

Antonyms

• pardonable

Derived terms

• unpardonable sin

Related terms

• pardonable