/ Thesaurus / A Synonyms of at arm's length Find synonyms for: Adverb1. at arm's lengthusage: at some distance; "keep someone at arm's length"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: sinister Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language