apathy vs slothfulness

apathy

noun
  • Lack of emotion or motivation; lack of interest or enthusiasm towards something; disinterest (in something). 

slothfulness

noun
  • The state or quality of being slothful. 

  • The result or product of being slothful. 

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