casuistic vs untrue

casuistic

adj
  • Overly subtle, hair-splitting. 

  • Relating to casuistry (attempts to solve moral dilemmas by applying general rules). 

untrue

adj
  • Not faithful or loyal. 

  • False; not true. 

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