Breadcrumb Home > Thesaurus > I Cite Synonyms of in principle Find synonyms for: Adverb1. in principle, in theory, in essenceusage: with regard to fundamentals although not concerning details; "in principle, we agree"WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved. 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: puerile Analogy of the Day: Today?s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language