oppressive vs tameless

oppressive

adj
  • Burdensome or difficult to bear. 

  • Hot and humid of the weather. 

  • Tyrannical or exercising unjust power. 

  • Weighing heavily on the spirit; intense, or overwhelming 

tameless

adj
  • Not tamable, unable to be tamed. 

  • Not tamed 

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