Breadcrumb Home > Thesaurus > S Synonyms of sedulous Find synonyms for: Adjective 1. assiduous, sedulous, diligent (vs. negligent) usage: marked by care and persistent effort; "her assiduous attempts to learn French"; "assiduous research"; "sedulous pursuit of legal and moral principles" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of sedulous (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: demagogue Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language