aversion vs unfriendliness

aversion

noun
  • An object of dislike or repugnance. 

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

unfriendliness

noun
  • The state of being unfriendly. 

  • An unfriendly act, unfriendly acts / actions. 

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