burnable vs inflammable

burnable

adj
  • Able to be burned; combustible 

noun
  • Anything that can be burned. 

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 burnable and inflammable occurred in a corpus of books? (source: Google Ngram Viewer )