1. Without concealment or deception; honest
   "their business was open and aboveboard"
   - straightforward

1. In an honest manner
   "was known for dealing aboveboard in everything"
   - honestly

See also: square, straight

• contracture
• contradance
• contradict
• contradiction
• contradiction in terms
• contradictorily
• contradictoriness
• contradictory
• contradistinction
• contradistinctive
• contradistinguish
• contrafagotto
• contraflow
• contrail
• contraindicate
• contraindication
• contralateral
• contralto
• contraposition
• contrapositive
• contraption
• contrapuntal
• contrapuntist
• contrarian
• contrariety