litotes vs rhetoric

litotes

noun
  • An ironic figure of speech whereby something is stated by denying its opposite, particularly the negation of a negative quality to say something positive. 

rhetoric

noun
  • Meaningless language with an exaggerated style intended to impress. 

  • The art of using language, especially public speaking, as a means to persuade. 

adj
  • Synonym of rhetorical. 

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