adequateness vs emptiness

adequateness

noun
  • The quality of being adequate, of meeting needs or expectations. 

emptiness

noun
  • The state or feeling of being empty. 

  • A void; a nothingness; something lacking existence. 

  • A nonexistence; a lack of existence. 

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