disinclination vs soft spot

disinclination

noun
  • The state of being disinclined; want of propensity, desire, or affection; slight aversion or dislike 

soft spot

noun
  • A sentimental fondness or affection. 

  • A point of vulnerability in a defence. 

  • A fontanelle. 

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