latitudinarian vs unprescriptive

latitudinarian

adj
  • Not restrained; not confined by precise limits. 

  • Lax in moral or religious principles. 

  • Tolerant, especially of other people's religious views. 

noun
  • A person who is tolerant of others' religious views. 

unprescriptive

adj
  • not prescriptive 

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