off-color vs refined

off-color

adj
  • Dirty, vulgar or obscene, especially in a way that is unpleasant. 

  • Feeling mildly unwell. 

  • Different than usual. 

  • Of the wrong color. 

refined

adj
  • Elegant, sometimes (derogatory) affected, prissy, or bloodless. 

  • Developed, improved. 

  • Subtle, scrupulous, carefully thought out. 

  • Highly-processed and pure. 

  • Free of dross or alloy. 

  • Dealing in a refined product such as sugar or petroleum. 

  • Elevated and polished. 

noun
  • The refined form of a commodity, as opposed to its raw or generic form. 

How often have the words off-color and refined occurred in a corpus of books? (source: Google Ngram Viewer )