/ Thesaurus / A Synonyms of at work Find synonyms for: Adjective1. at work(predicate), busy (vs. idle)usage: on the job; "had been at work for over an hour before her boss arrived"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language