/ Thesaurus / S Synonyms of sidle up Find synonyms for: Verb1. cozy up, cotton up, shine up, play up, sidle up, suck up, ingratiateusage: ingratiate oneself to; often with insincere behavior; "She is playing up to the chairman"WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: anecdote Analogy of the Day: Today?s Analogy Spelling Bee: Today?s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language