straightforward vs two-edged

straightforward

adv
  • In a straightforward manner; straightforwards; straightforwardly. 

adj
  • proceeding in a straight course or manner; not deviating 

  • easy, simple, uncomplicated, without difficulty 

  • direct; forthright; frank; sincere 

two-edged

adj
  • having two, often contrasting, meanings or interpretations 

  • having two cutting edges 

How often have the words straightforward and two-edged occurred in a corpus of books? (source: Google Ngram Viewer )