Definitions for symphonioussɪmˈfoʊ ni əs
Random House Webster's College Dictionary
sym•pho•ni•oussɪmˈfoʊ ni əs(adj.)
harmonious; in harmonious agreement or accord.
Origin of symphonious:
harmonious in sound
"the symphonic hum of a million insects"
Of or pertaining to simultaneous sounds that are harmonious together.
The symphonious sound of the fifty skilled musicians filled the concert hall.
Origin: From sym- "together" + phone "sound"
agreeing in sound; accordant; harmonious