/ Thesaurus / R Synonyms of rear back Find synonyms for: Verb1. rear back, rear, rise upusage: rear backwards on its hind legs; "the frightened horse reared back"2. rear back, startle, jump, startusage: start with anger or resentment or in protestWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language