Breadcrumb Home > Thesaurus > C Synonyms of contagious Find synonyms for: Adjective 1. contagious, infectious (vs. noninfectious) usage: easily diffused or spread as from one person to another; "a contagious grin" 2. catching, communicable, contagious, contractable, transmissible, transmittable, infectious (vs. noninfectious) usage: (of disease) capable of being transmitted by infection WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of contagious (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: persiflage Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language