- unmusical, nonmusical, dissonant - not musical in nature; "the unmusical cry of the bluejay"
- unresolved, dissonant - characterized by musical dissonance; harmonically unresolved
Antonym: harmonious (indirect, via inharmonious)
- discordant, disharmonious, dissonant, inharmonic - lacking in harmony
Antonym: harmonious (indirect, via inharmonious)