aloofness vs coolness

aloofness

noun

  • The state of being aloof 

coolness

noun

  • Indifference; lack of passion or interest. 

  • The state of being cool, i.e. calm. 

  • The state of being cool, i.e. good or pleasing. 

  • The result or product of being cool, i.e. good or pleasing. 

  • The state of being cool, i.e. chilly. 

  • The result or product of being cool, i.e. chilly. 

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