causal vs sensitive

causal

adj
  • of, relating to, or being a cause of something; causing 

noun
  • a word (such as because) that expresses a reason or a cause 

sensitive

adj
  • Capable of offending, upsetting, or hurting. 

  • Having the faculty of sensation; pertaining to the senses. 

  • Responsive to stimuli. 

  • Easily offended, upset, or hurt. 

  • Important, intricate, and requiring great delicacy. 

  • Accurate; able to register small changes in some property. 

  • Meant to be concealed or kept secret. 

noun
  • A person with a paranormal sensitivity to something that most cannot perceive. 

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