unmediated vs vicarious

unmediated

adj
  • Not mediated 

vicarious

adj
  • Experienced or gained by taking in another person’s experience, rather than through first-hand experience, such as through watching or reading. 

  • On behalf of others. 

  • Delegated. 

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