above-board vs undisputed

above-board

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

adv
  • Honestly; openly. 

undisputed

adj
  • Unchallenged and accepted without question 

  • Universally agreed upon; not disputed 

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