euphonious vs unfriendly

euphonious

adj
  • Of sounds, especially speech: demonstrating or possessing euphony; agreeable to the ear; pleasant-sounding. 

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 euphonious and unfriendly occurred in a corpus of books? (source: Google Ngram Viewer )