Definition of "unisonous" []

• Being in unison; unisonant. (adjective)

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• "This is from your frontispiece: Plainsong -- the unisonous vocal music used in the Christian church from the earliest times; any simple and unadorned melody or air."
• "Yet even about the fourteenth century the gradual substitution of musica mensurata for the cantilena romana, part-music for unisonous, wrought an increasing change in the relation of choir to altar."
• "Superseding the primitive unisonous plain-song, the old parallel concords, and the simple faburden (faux bourdon) counterpoint that succeeded Gregory, they taught how musical tones can better assist worship with the beauty of harmony and the precision of scientific taste."