There are many synonyms for the word "chaotic sounding" including dissonant, jarring, cacophonous, discordant, raucous, abrasive, shrill, clashing, and unharmonious. These words describe sounds that are unpleasant to the ear and create a feeling of disorder or confusion. Dissonant refers to sounds that clash and create an unpleasant sensation while jarring implies a sudden or unexpected impact. Cacophonous describes a harsh, discordant mixture of sounds and discordant refers to sounds that are not in harmony. Raucous describes a loud, aggressive sound and abrasive suggests an irritating or grating sensation. Shrill refers to a sharp, high-pitched sound while clashing implies a collision of sounds. Unharmonious describes sounds that do not blend well together.