perfunctory vs unselective

perfunctory

adj
  • Done only or merely to conform to a minimal standard or to fulfill a protocol or presumptive duty. 

  • Performed in a careless or indifferent manner as a thing of rote. 

unselective

adj
  • Not selective; open and inclusive 

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