/ Thesaurus / S Synonyms of side to side Find synonyms for: Adjective1. side-to-sideusage: alternately left and right with respect to a central point; "the side-to-side motion of the boat"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language