dullness vs spice

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. 

spice

noun
  • An aromatic odour. 

  • Appeal, interest; an attribute that makes something appealing, interesting, or engaging. 

  • A synthetic cannabinoid drug. 

  • The quality of being spicy. 

  • Aromatic or pungent plant matter (usually dried) used to season or flavour food. 

  • Sweets, candy. 

  • A characteristic touch or taste; smack; flavour. 

verb
  • To add spice or spices to; season. 

  • To spice up. 

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