inarticulate vs persuasive

inarticulate

adj
  • not articulated in normal words. 

  • unable to speak with any clarity 

  • speechless 

  • not having joints or other articulations 

noun
  • An animal belonging to the subphylum Inarticulata. 

persuasive

noun
  • That which persuades; incitement. 

adj
  • Able to persuade; convincing. 

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