indiscretion vs refinement

indiscretion

noun
  • The quality or state of being indiscreet; lack of discretion 

  • An indiscreet or imprudent act; indiscreet behavior. 

  • A brief sexual liaison. 

refinement

noun
  • The act, or the result of refining; the removal of impurities, or a purified material 

  • A fine or subtle distinction. 

  • High-class style; cultivation. 

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