aloofness vs disinterest

aloofness

noun

  • The state of being aloof 

disinterest

noun

  • An absence of interest (attention or curiosity). 

  • The absence of interest (bias or stake). 

verb

  • To render disinterested. 

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