extensive vs systemic

extensive

adj
  • Having a combined system entropy that equals the sum of the entropies of the independent systems. 

  • Serving to extend or lengthen; characterized by extension. 

  • Having a great extent; covering a large area; vast. 

  • Considerable in amount. 

systemic

adj
  • Embedded within and spread throughout and affecting a whole system, group, body, economy, market, or society. 

  • Pertaining to an entire organism. 

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