mild vs obstinate

mild

adj
  • Not serious or dangerous. 

  • Not sharp or bitter; not strong in flavor. 

  • Of only moderate severity; not strict. 

  • Moderately warm, especially less cold than expected. 

  • Gentle and not easily angered. 

  • Not overly felt or seriously intended. 

  • Acting gently and without causing harm. 

noun
  • A relatively low-gravity beer, often with a dark colour; mild ale 

obstinate

adj
  • Not easily subdued or removed. 

  • Stubbornly adhering to an opinion, purpose, or course, usually with implied unreasonableness; persistent. 

  • Typical of an obstinate person; fixed and unmoving. 

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