charitable vs implacable

charitable

adj
  • Kind, generous. 

  • Having a purpose or character of a charity. 

  • Pertaining to charity. 

implacable

adj
  • Not able to be placated or appeased. 

  • Impossible to prevent or stop; inexorable, unrelenting, unstoppable. 

  • Adamant; immovable. 

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