contumacious vs stubborn

contumacious

adj
  • Contemptuous of authority; willfully disobedient; rebellious. 

  • Willfully disobedient to the summons or orders of a court. 

stubborn

adj
  • Refusing to move or to change one's opinion; obstinate; firmly resisting; persistent in doing something. 

  • Of materials: physically stiff and inflexible; not easily melted or worked. 

noun
  • Stubbornness. 

  • A disease of citrus trees characterized by stunted growth and misshapen fruit, caused by Spiroplasma citri. 

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