dullness vs dynamism

dullness

noun
  • The quality of not perceiving or kenning things distinctly. 

  • The quality of being uninteresting; boring; humorless or irksome. 

  • The quality of being slow of understanding things; stupidity. 

  • Lack of interest or excitement. 

  • The lack of visual brilliance; want of sheen. 

  • bluntness. 

dynamism

noun
  • Great energy, drive, force, or power; vigour of body, mind or personality; oomph or pizzazz 

  • Dynamic reality; active energy; continuous change, progress, or activity. 

  • Any of several philosophical theories that attempt to explain the universe by an immanent force. 

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