aloof vs unmindful (of)

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. 

unmindful (of)

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