incendiary vs smouldering

incendiary

adj
  • Capable of, or used for, or actually causing fire. 

  • Intentionally stirring up strife, riot, rebellion. 

  • Inflammatory, emotionally charged. 

noun
  • Something capable of causing fire, particularly a weapon. 

  • One who excites or inflames factions into quarrels. 

  • One who maliciously sets fires. 

smouldering

adj
  • Burning slowly, producing smoke but no flame. 

noun
  • The act by which something smoulders; residual heat. 

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