incorruptible vs inextinguishable

incorruptible

adj
  • Incapable of being bribed or morally corrupted; inflexibly just and upright. 

  • Not subject to corruption or decay. 

noun
  • A person whose body does not decompose after death, a sign of holiness. 

  • One of an ancient religious sect of Alexandria, whose adherents believed that the body of Christ was incorruptible, and that he suffered hunger, thirst, and pain only in appearance. 

inextinguishable

adj
  • Incapable of being extinguished, not extinguishable. 

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