Breadcrumb Home > Thesaurus > R Synonyms of rattail Find synonyms for: Noun1. grenadier, rattail, rattail fish, gadoid, gadoid fishusage: deep-sea fish with a large head and body and long tapering tailWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of rattail (Dictionary) ✖ Related Content Daily Word Quiz: sophism Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language