aversion vs dissatisfaction

aversion

noun
  • An object of dislike or repugnance. 

  • Opposition or repugnance of mind; fixed dislike often without any conscious reasoning. 

dissatisfaction

noun
  • unhappiness or discontent 

  • the cause of such feelings 

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