above-board vs unvarnished

above-board

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

adv
  • Honestly; openly. 

unvarnished

adj
  • Natural, unmodified, unembellished, not exaggerated. 

  • Not having been coated with varnish (or a similar surface treatment). 

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