Synonyms for excusable

pardonable, forgivable, understandable, justifiable, reasonable, defensible, permissible, trivial, passable, slight, minor, vindicable, vindicatory, exculpatory, warrantable, plausible, allowable, venial, remissible, condonable, expiable, explainable, harmless, innocuous, not excessive, not fatal, not too bad, not inexcusable, not injurious, innocent, fair, within limits, not beyond the pale*.

Antonyms inexcusable, unforgivable, culpable.