privative vs unfriendly

privative

adj
  • consisting in the absence of something; negative 

  • causing privation; depriving 

  • indicating the absence of something 

noun
  • something that causes privation or indicates an absence 

unfriendly

adj
  • Unfavourable. 

  • Not friendly; hostile; mean. 

noun
  • An enemy. 

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

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