dressy vs informal

dressy

adj
  • Fond of dressing up; keen on fashion. 

  • Elegant, smart, or stylish. 

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. 

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