flammable vs uninflammable

flammable

adj

  • Capable of burning, especially a liquid. 

  • Subject to easy ignition and rapid flaming combustion. 

  • Easily set on fire. 

noun

  • Any flammable substance. 

uninflammable

adj

  • Not inflammable. 

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