peacefulness vs seclusion

peacefulness

noun
  • The state of being peaceful. 

seclusion

noun
  • The state of being secluded or shut out, as from company, society, the world, etc.; solitude. 

  • The act of secluding, shutting out or keeping apart. 

  • A secluded, isolated or private place. 

  • The mature phase of the extratropical cyclone life cycle. 

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