protected vs unsafe

protected

adj
  • Having the protected access modifier, indicating that a program element is accessible to subclasses but not to the program in general. 

  • defended 

unsafe

verb
  • To remove the safety from (a weapon). 

adj
  • Not safe (various senses); dangerous. 

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