fiery vs halfhearted

fiery

adj
  • Of or relating to fire. 

  • Inflammable or easily ignited. 

  • Burning or glowing. 

  • Tempestuous or emotionally volatile. 

  • Hot or inflamed. 

  • Having the colour of fire. 

  • Spirited or filled with emotion. 

halfhearted

adj
  • Lacking full energy, effort, commitment, or resolve. 

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