hebetate vs unfriendly

hebetate

adj
  • obtuse; dull 

  • Having a dull or blunt and soft point 

verb
  • To render obtuse; to dull; to blunt. 

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