calmness vs unease

calmness

noun
  • The state of being calm; tranquillity; silence. 

  • The product of being calm. 

unease

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

verb
  • To make uneasy or uncomfortable 

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