1) At variance 2) Characterized by dissonance 3) Disagreeing or harsh in sound 4) Discordant 5) French word used in English 6) Harmonically unresolved 7) Harsh 8) Incongruous 9) Inharmonious 10) Jarring 11) Lacking in harmony 12) Nonmusical 13) Not in accord 14) Out of harmony 15) Unmusical Found on https://www.crosswordclues.com/clue/dissonant
Dis'so·nant adjective [ Latin dissonans , -antis , present participle of dissonare to disagree in sound, be discordant; dis- + sonare to sound: confer French dissonant . See Sonant .] 1. Sounding harshly; discordant; unharmonious. « Wi... Found on http://www.encyclo.co.uk/webster/D/96