Breadcrumb Home > Thesaurus > I Cite Synonyms of inertia Find synonyms for: Noun1. inactiveness, inactivity, inertia, traitusage: a disposition to remain inactive or inert; "he had to overcome his inertia and get back to work"2. inertia, mechanical phenomenonusage: (physics) the tendency of a body to maintain its state of rest or uniform motion unless acted upon by an external forceWordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.Definition and meaning of inertia (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. February 2021 Current Events: US News The Berlin Conference and the Partition of Africa The Implied Powers of Congress Noble Titles and Ranks in a Monarchy Keeping Your Brain Active in a COVID-19 World The Manchu Related Content Daily Word Quiz: nosegay Analogy of the Day: Today?s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language