cacophonous vs harmonious

cacophonous

adj
  • Containing, consisting of, or producing harsh, unpleasant or discordant sounds. 

harmonious

adj
  • Having components pleasingly or appropriately combined. 

  • Showing accord in feeling or action. 

  • Melodious; in harmony. 

How often have the words cacophonous and harmonious occurred in a corpus of books? (source: Google Ngram Viewer )