pious vs unsacred

pious

adj
  • Relating to religion or religious works. 

  • Of or pertaining to piety, exhibiting piety, devout, godfearing. 

  • Insisting on or making a show of one's own virtue, especially in comparison to others; sanctimonious, condescending, judgmental. 

unsacred

adj
  • Not sacred or sacrosanct; thus, accessible 

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