/ Thesaurus / J Synonyms of jean sibelius Find synonyms for: Noun1. Sibelius, Jean Sibelius, Johan Julius Christian Sibeliususage: Finnish composer (1865-1957)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language