righteous

Short definition from Wiktionary

Adjective

1. 1
   Free from sin or guilt.
2. 2
   Moral and virtuous, perhaps to the point of sanctimony.
3. 3
   Justified morally.
4. 4
   Awesome; great.
5. 5
   Major; large; significant.

Verb

1. 1
   To make righteous; specifically, to justify religiously, to absolve from sin.