aboveboard aboveboard /əˈbʌvˌbɔːrd/

adjective

1. Without concealment or deception; honest  ( aboveboard , straightforward )
   without concealment or deception; honest
    Their business was open and aboveboard
   their business was open and aboveboard
    Straightforward in all his business affairs
   straightforward in all his business affairs
   

adverb

1. In an honest manner  ( aboveboard , honestly )
   in an honest manner
    In he can't get it honestly, he is willing to steal it
   in he can't get it honestly, he is willing to steal it
    Was known for dealing aboveboard in everything
   was known for dealing aboveboard in everything