aloof vs bystanding

aloof

adj
  • Reserved and remote; either physically or emotionally distant; standoffish. 

adv
  • At or from a distance, but within view, or at a small distance; apart; away. 

  • Without sympathy; unfavorably. 

bystanding

adj
  • Standing nearby; having the role of bystander. 

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