confiding vs secretness

confiding

noun
  • The telling of something in confidence. 

adj
  • Of a bird, allowing the close approach of humans. 

  • In confidence; as if with trust. 

  • Having or showing confidence or trust in another person. 

secretness

noun
  • Quality of being secret. 

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