revengeless
/rɪˈvɛn(d)ʒləs/adjective
1Without desire for revenge; free from or devoid of vengefulness or vindictiveness. In later use also: that involves no revenge, done without vengeance.
2Deprived of revenge; unavenged.
Origin
Early 17th century; earliest use found in Thomas Wright (d. 1624). From revenge + -less.