WordWeb Online

1. A conflict of people's opinions, actions or characters
   - disagreement, dissension
    
2. The auditory experience of sound that lacks musical quality; sound that is a disagreeable auditory experience
   "modern music is just dissonance to me";
   - noise, racket
    
3. Disagreeable sounds

Derived forms: dissonances

Type of: auditory sensation, conflict, sound, sound property

Antonym: harmony

Encyclopedia: Dissonance