/ Dictionary / Index S symphonious: Meaning and Definition of Find definitions for: sym•pho•ni•ous Pronunciation: (sim-fō'nē-us), [key] — adj. harmonious; in harmonious agreement or accord. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: symphonious (Thesaurus) Symphonie Fantastique* symphonist Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language