disingenuous vs downright

disingenuous

adj
  • Assuming a pose of naïveté to make a point or for deception. 

  • Not honourable; unworthy of honour 

  • Not ingenuous; not frank or open 

downright

adj
  • Directly to the point; plain 

  • Using plain direct language; accustomed to express opinions directly and bluntly; blunt. 

  • Complete; absolute 

adv
  • Really; actually; quite 

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