above-board vs unreal

above-board

adj
  • In open sight; without trick, concealment, or deception. 

adv
  • Honestly; openly. 

unreal

adj
  • Not real or substantial; having no actual presence in reality; lacking the characteristics of reality. 

  • very impressive; amazing; unbelievable; incredible; larger or more fantastic than typical of real life. 

How often have the words above-board and unreal occurred in a corpus of books? (source: Google Ngram Viewer )