relentless vs tame

relentless

adj
  • Unrelenting or unyielding in severity. 

  • Unremitting, steady and persistent. 

tame

adj
  • Crushed; subdued; depressed; spiritless. 

  • Mild and well-behaved; accustomed to human contact. 

  • Of a person, well-behaved; not radical or extreme. 

  • Not or no longer wild; domesticated. 

  • Capable of being represented as a finite closed polygonal chain. 

  • Not exciting. 

verb
  • To make gentle or meek. 

  • To make (an animal) tame; to domesticate. 

  • To become tame or domesticated. 

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