informal vs stereotypical

informal

adj
  • Reflecting everyday, non-ceremonious usage. 

  • Suited for everyday use. 

  • Not in accord with the usual regulations. 

  • Not formal or ceremonious. 

  • Not organized; not structured or planned. 

stereotypical

adj
  • Pertaining to a stereotype; conventional 

  • Banal, commonplace and clichéd because of overuse. 

  • Relating to stereotypy. 

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