/ Thesaurus / V Synonyms of vitharr Find synonyms for: Noun1. Vitharr, Vithar, Vidar, Norse deityusage: (Norse mythology) one of the Aesir; son of Odin; avenges his parent by slaying Fenrir at RagnarokWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: loquacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language