decorative vs harmonious

decorative

adj
  • That serves to decorate 

noun
  • A plant, tile, etc. intended for use as decoration. 

harmonious

adj
  • Having components pleasingly or appropriately combined. 

  • Showing accord in feeling or action. 

  • Melodious; in harmony. 

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