non-harmonious

adjective

1. marked by agreement in feeling, attitude, or action: a harmonious group.
2. forming a pleasingly consistent whole; congruous: harmonious colors.
3. pleasant to the ear; tuneful; melodious.

adjective

1. (esp of colours or sounds) fitting together well
2. having agreement or consensus
3. tuneful, consonant, or melodious

adj.1540s, in music, from French harmonieux (14c.), from harmonie (see harmony). In nonmusical use from 1630s. Related: Harmoniously; harmoniousness.