'Righteous' definitions:

Definition of 'righteous'

From: WordNet
adjective
Characterized by or proceeding from accepted standards of morality or justice; "the...prayer of a righteous man availeth much"- James 5:16 [ant: unrighteous]
adjective
Morally justified; "righteous indignation"

Definition of 'Righteous'

From: GCIDE
  • Righteous \Right"eous\, a. [OE. rightways, rightwise, AS. rightw[imac]s; riht right + w[imac]s wise, having wisdom, prudent. See Right, a., Wise, a.] Doing, or according with, that which is right; yielding to all their due; just; equitable; especially, free from wrong, guilt, or sin; holy; as, a righteous man or act; a righteous retribution. [1913 Webster]
  • Fearless in his righteous cause. --Milton. [1913 Webster]
  • Syn: Upright; just; godly; holy; uncorrupt; virtuous; honest; equitable; rightful. [1913 Webster]