insipidity vs sharpness

insipidity

noun
  • Something that is insipid; an insipid utterance, sight, object, etc. 

  • The condition of being insipid; insipidness. 

sharpness

noun
  • acuteness or acuity. 

  • the fineness of the point a pointed object. 

  • pungency or acidity. 

  • the cutting ability of an edge; keenness. 

  • The product or result of being sharp. 

  • distinctness, focus. 

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