- disagreeing or harsh in sound; discordant.
- out of harmony; incongruous; at variance.
- Music. characterized by dissonance.
- discordant; cacophonous
- incongruous or discrepant
- music characterized by dissonance
early 15c., from Middle French dissonant and directly from Latin dissonantem (nominative dissonans), present participle of dissonare “differ in sound,” from dis- “apart” (see dis-) + sonare “to sound” (see sonata).