disinterest vs neutrality

disinterest

noun
  • The absence of interest (bias or stake). 

  • An absence of interest (attention or curiosity). 

verb
  • To render disinterested. 

neutrality

noun
  • The state or quality of being neutral; the condition of being unengaged in contests between others; state of taking no part on either side. 

  • The quality or state of being neutral. 

  • The condition of a nation or government which refrains from taking part, directly or indirectly, in a war between other powers. 

  • Those who are neutral; a combination of neutral powers or states. 

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