Venial

Adjective

 * 1) pardonable; able to be forgiven
 * a venial sin
 * 1) excusable; trifling
 * his venial youthful indiscretions

Antonyms

 * mortal (1)

Thesaurus
admissible, allowable, condonable, defensible, dispensable, excusable, exemptible, expiable, forgivable, harmless, inoffensive, insignificant, justifiable, legitimate, minor, pardonable, petty, reasonable, remissible, tolerable, tolerated, trifling, trivial, unimportant, unobjectionable, vindicable, warrantable