Pronunciation: (rī'chus),[key] —adj. 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.
—n. the righteous,(used with a pl. v.) righteous persons collectively.