or u·nis·o·nal, u·nis·o·nant
- being in unison.
Origin of unisonous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for unisonous
Historical Examples of unisonous
The unisonous quality of octaves is easily explained when we examine the “harmonic series” of upper partials (see Sound).