halfhearted vs lazy

halfhearted

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

lazy

adj
  • Unwilling to do work or make an effort; disinclined to exertion. 

  • Showing a lack of effort or care. 

  • Of an eye, squinting because of a weakness of the eye muscles. 

  • Droopy. 

  • Causing or characterised by idleness; relaxed or leisurely. 

  • Turned so that (the letter) is horizontal instead of vertical. 

  • Sluggish; slow-moving. 

  • Employing lazy evaluation; not calculating results until they are immediately required. 

noun
  • A lazy person. 

verb
  • To laze, act in a lazy manner. 

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