explicit vs intelligible

explicit

adj
  • Very specific, clear, or detailed. 

  • Containing material (e.g. language or film footage) that might be deemed offensive or graphic. 

noun
  • The final few words of a text. 

intelligible

adj
  • Capable of being understood; clear to the mind. 

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