right·eous 
(rīchəs)
(rīchəs)adj.
1. Morally upright; without guilt or sin: a righteous parishioner.
2. In accordance with virtue or morality: a righteous judgment. See Synonyms at moral.
n. (used with a pl. verb)
Righteous people considered as a group.
[Middle English ryghtuous, alteration of rihtwise, from Old English rihtwīs : riht, right; see RIGHT + -wīse, -wise.]
righteous·ly adv.
righteous·ness n.