inconsistent vs polymorphous

inconsistent

adj
  • Having the property that a contradiction can be derived. 

  • Lacking internal consistency; self-contradicting; not compatible with itself. 

  • Not consistent or coherent in thought or behavior. 

  • Not compatible (with another thing); incompatible, discrepant, at odds. 

polymorphous

adj
  • Having, or occurring in, several distinct forms 

  • Crystallizing in two or more different forms; polymorphic 

  • Having, or assuming, a variety of forms, characters, or styles 

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