above-board vs untruthful

above-board

adv
  • Honestly; openly. 

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

untruthful

adj
  • Pertaining to falsehood; corrupt; dishonest. 

  • Not giving the truth; providing untrue facts; lying. 

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