nutso vs sicko

nutso

noun
  • A crazy person; a crackpot or lunatic. 

  • Craziness; insanity. 

adv
  • In a crazy manner. 

  • Madly; extremely or obsessively. 

adj
  • Obsessed; overly enthusiastic. 

  • Ridiculous; unbelievable or silly. 

  • Crazy, insane. 

  • Fraught or out of control. 

sicko

noun
  • A person with unpleasant tastes, views or habits. 

  • A physically ill person. 

  • A mentally ill person. 

adj
  • Characterized by depraved tastes or habits; deviant. 

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