ambivalence vs uneasiness

ambivalence

noun
  • A state of uncertainty or indecisiveness. 

  • The coexistence of opposing attitudes or feelings (such as love and hate) towards a person, object or idea. 

uneasiness

noun
  • An anxious state of mind; anxiety. 

  • The state of being uneasy, nervous or restless. 

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