/ Thesaurus / E Synonyms of epidemic disease Find synonyms for: Noun1. epidemic disease, infectious diseaseusage: any infectious disease that develops and spreads rapidly to many peopleWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: kiln Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language