/ Thesaurus / E Synonyms of expeditiously Find synonyms for: Adverb1. efficiently, expeditiouslyusage: with efficiency; in an efficient manner; "he functions efficiently"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language