locked vs susceptible

locked

adj
  • Having undergone locking; secured by a lock. 

  • Very drunk. 

  • Bound to a carrier. 

susceptible

noun
  • A person who is vulnerable to being infected by a certain disease 

adj
  • vulnerable 

  • likely to be affected by something 

  • that, when subjected to a specific operation, will yield a specific result 

  • especially sensitive, particularly to a stimulus 

  • easily influenced or tricked; credulous 

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