We have put together a list of words that are similar to DISSONANCE.

12 Alternative Words Similar to dissonance

1 Disagreement Noun      Synonym Words Like Disagreement
2 Dissension Noun      Synonym Words Like Dissension
3 Noise Noun      Synonym Words Like Noise
4 Racket Noun      Synonym Words Like Racket
5 Conflict Noun      Synonym Words Like Conflict
6 Sound Noun      Synonym Words Like Sound
7 Agreement Noun      Antonym Words Like Agreement
8 Discord Noun      Synonym Words Like Discord
9 Disunity Noun      Hyponym
10 Divide Noun      Hyponym Words Like Divide
11 Disharmony Noun      Hyponym
12 Inharmoniousness Noun      Hyponym

10 definitions of dissonance

1 A mingling of discordant sounds; an inharmonious combination of sounds; discord.
2 Want of agreement; incongruity.
3 a conflict of people's opinions or actions or characters
4 the auditory experience of sound that lacks musical quality; sound that is a disagreeable auditory experience
5 disagreeable sounds
6 A harsh, disagreeable combination of sounds; discord.
7 Lack of agreement, consistency, or harmony; conflict: "In Vietnam, reality fell away and dissonance between claim and fact filled the void” ( Michael Janeway).
8 Music A combination of tones contextually considered to suggest unrelieved tension and require resolution.
9 The quality or fact of being dissonant; an inharmonious mixture or combination of sounds; harshness of combined sounds; discord.
10 Specifically— In music: The combination of tones that are so far unrelated to each other as to produce beats: distinguished from consonance. See beat, n.
We get our data from many different dictionaries across the web:
Wordnik, Wiktionary, Century, American Heritage, Gcide