Breadcrumb Home > Thesaurus > I Synonyms of inroad Find synonyms for: Noun 1. inroad, trespass, encroachment, violation, intrusion, usurpation usage: an encroachment or intrusion; "they made inroads in the United States market" 2. inroad, invasion usage: an invasion or hostile attack WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of inroad (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: insitu Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language