empyreal vs inflammable

empyreal

adj
  • Fiery, made of pure fire. 

  • Of the sky or heavens. 

  • Pertaining to the highest heaven or the empyrean 

inflammable

adj
  • Capable of burning; easily set on fire. 

  • Incapable of burning; not easily set on fire. 

  • Easily excited; set off by the slightest excuse; easily enraged or inflamed. 

noun
  • Any inflammable substance. 

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