Breadcrumb Home > Thesaurus > E Cite Synonyms of efficaciously Find synonyms for: Adverb1. efficaciously, effectivelyusage: in an effective manner; "these are real problems that can be dealt with most effectively by rational discussion"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 Mardi Gras “High Crimes and Misdemeanors:” A Short History of Impeachment Noble Titles and Ranks in a Monarchy Keeping Your Brain Active in a COVID-19 World The Manchu Related Content Daily Word Quiz: odaysuiz Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language