dullness vs ebullience

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. 

ebullience

noun
  • A boiling or bubbling up; an ebullition. 

  • The quality of enthusiastic or lively expression of feelings and thoughts. 

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