feral vs immigrant

feral

noun
  • A person who has isolated themselves from the outside world; one living an alternative lifestyle. 

  • A domesticated animal that has returned to the wild; an animal, particularly a domesticated animal, living independently of humans. 

  • A contemptible young person, a lout, a person who behaves wildly. 

  • A character in furry art or literature which has the physical characteristics (body) of a regular animal (typically quadripedal), that may or may not be able to communicate with humans or anthros (contrasts anthro) 

adj
  • Internet slang. Engrossed by a certain thought or behavior. 

  • Of or pertaining to the dead, funereal. 

  • Of an animal, being wild but descended from domestic or captive animals. 

  • Wild, untamed. 

  • Contemptible, unruly, misbehaved. 

  • Deadly, fatal. 

immigrant

noun
  • A non-native person who comes to a country from another country to permanently settle there. 

  • A plant or animal that establishes itself in an area where it previously did not exist. 

adj
  • Of or relating to immigrants or the act of immigrating. 

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