downright vs inadequately

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 

inadequately

adv
  • In an inadequate manner. 

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