central vs worth talking about

central

adj
  • Being very important, or key to something. 

  • Having or containing the centre of something. 

  • Being in the centre. 

  • Exerting its action towards the peripheral organs. 

noun
  • centre 

worth talking about

adj
  • Important or noteworthy. 

How often have the words central and worth talking about occurred in a corpus of books? (source: Google Ngram Viewer )