gentle vs relentless

gentle

adj
  • Gradual rather than steep or sudden. 

  • Soft and mild rather than hard or severe. 

  • Tender and amiable; of a considerate or kindly disposition. 

  • Polite and respectful rather than rude. 

  • Docile and easily managed. 

verb
  • To break; to tame; to domesticate. 

  • To soothe; to calm; to make gentle. 

  • To become gentle. 

noun
  • A trained falcon, or falcon-gentil. 

  • A maggot used as bait by anglers. 

relentless

adj
  • Unremitting, steady and persistent. 

  • Unrelenting or unyielding in severity. 

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