inexpedience vs nothingness

inexpedience

noun
  • The quality or state of being inexpedient; unsuitableness or impropriety. 

nothingness

noun
  • The quality of inconsequentiality; the lack of significance. 

  • A void; an emptiness. 

  • The state of nonexistence; the condition of being nothing. 

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