akin vs unfriendly

akin

adj
  • Of the same kin; related by blood. 

  • Allied by nature; similar; partaking of the same properties; of the same kind. 

unfriendly

noun
  • An enemy. 

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

adj
  • Not friendly; hostile; mean. 

  • Unfavourable. 

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