middle-class vs unconventional

middle-class

adj
  • characteristic of the middle class(es); reflective of that class's values and aspirations. Commonly associated with a desire for social respectability and an emphasis on family values and education. 

  • occupying a position between the upper class and the working class 

unconventional

noun
  • Something or someone that is unconventional. 

adj
  • Not adhering to convention or accepted standards 

  • Atypical 

  • Out of the ordinary 

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