chilly vs unfriendly

chilly

adj
  • Distant and cool; unfriendly. 

  • Feeling uncomfortably cold. 

  • Cold enough to cause discomfort. 

unfriendly

adj
  • Not friendly; hostile; mean. 

  • Unfavourable. 

noun
  • An enemy. 

adv
  • in an unkind or unfriendly manner; not as a friend 

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