terror vs unease

terror

noun
  • Intense dread, fright, or fear. 

  • The action or quality of causing dread; terribleness, especially such qualities in narrative fiction. 

  • A night terror. 

  • Terrorism. 

  • Something or someone that causes such fear. 

unease

noun
  • Trouble; misery; a feeling of disquiet or concern. 

verb
  • To make uneasy or uncomfortable 

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