disinterest vs vivaciousness

disinterest

verb

  • To render disinterested. 

noun

  • The absence of interest (bias or stake). 

  • An absence of interest (attention or curiosity). 

vivaciousness

noun

  • the state of being vivacious; vivacity 

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