Synonyms of above board in English:

above board


See definition of above board

adjective

1‘he had set up a chain of more or less above-board casinos’

SYNONYMS
honest, fair, open, frank, straight, overt, candid, forthright, unconcealed, trustworthy, unequivocal
legal, legitimate, lawful, licit
informal legit, kosher, pukka, by the book, fair and square, square, on the level, on the up and up, upfront
ANTONYMS

dishonest, shady


adverb

1‘it's imperative that you play it all above board’

SYNONYMS
honestly, fairly, openly, frankly, overtly, candidly, forthrightly, unequivocally
legally, legitimately, lawfully
ANTONYMS

dishonestly, shadily