banal vs unconventional

banal

adj
  • Common in a boring way, to the point of being predictable; containing nothing new or fresh. 

  • Relating to a type of feudal jurisdiction or service. 

unconventional

adj
  • Out of the ordinary 

  • Not adhering to convention or accepted standards 

  • Atypical 

noun
  • Something or someone that is unconventional. 

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