interested vs unfeeling

interested

adj
  • Having an interest (stake); being a stakeholder; motivated by considerations of self-interest; self-serving. 

  • Owning a share of a company; being a shareholder. 

  • Having or showing interest (attention or curiosity). 

unfeeling

adj
  • Without emotion or sympathy 

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