Disharmonism is a term used to describe the lack of harmony or agreement between two or more things. It is an antonym of harmony, which refers to the quality of being in agreement or accord. Synonyms for harmony include concord, unity, and coherence. Other antonyms for disharmonism include accord, agreement, cooperation, and compatibility. In music, the term disharmony refers specifically to the use of chords that clash with each other. Antonyms of disharmony in music include harmony, consonance, and melodic structure. Overall, antonyms for disharmony emphasize the importance of agreement, compatibility, and cooperation in achieving harmony between different elements.