adjective
1.
characterized by uprightness or morality:
a righteous observance of the law.
2.
morally right or justifiable:
righteous indignation.
3.
acting in an upright, moral way; virtuous:
a righteous and godly person.
4.
Slang. absolutely genuine or wonderful:
some righteous playing by a jazz great.
noun
5.
the righteous, (used with a plural verb) righteous persons collectively.