aboveboard

Adjective

• without concealment or deception; honest
  • their business was open and aboveboard
    
  • straightforward in all his business affairs
    

Adverb

• in an honest manner
  • in he can't get it honestly, he is willing to steal it
    
  • was known for dealing aboveboard in everything
    

Related words

• Synonyms: 
  straightforward , honestly
• Antonyms: 
  dishonestly , venally , deceitfully