1. to create a lack of harmony or agreement; to cause discord or conflict
Usage: transitive or intransitive; formal or literary
2. in music, to produce sounds that are not in harmony; to create dissonance
Usage: transitive or intransitive; musical context

Examples

• The conflicting opinions began to disharmonize the team's efforts.
• The two instruments disharmonized when played together without proper tuning.
• Political divisions continue to disharmonize the nation.
• The harsh notes disharmonized the otherwise beautiful melody.
• Their different goals disharmonized the partnership.
• The clashing colors disharmonized the room's aesthetic.