/ Thesaurus / R Synonyms of river shad Find synonyms for: Noun1. river shad, Alosa chrysocloris, shadusage: shad that spawns in streams of the Mississippi drainage; very similar to Alosa sapidissimaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: aversion Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language