perfunctory vs unwilled

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. 

unwilled

adj
  • Not willed or wished for. 

  • Not disposed of in a legal will. 

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