bluffing vs principled

bluffing

noun
  • A bluff; a false expression of the strength of one's position in order to intimidate. 

principled

adj
  • Based on, having, or manifesting principles 

  • strongly adhering to, or heedful of, guiding beliefs or moral rules 

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