Synonyms and related words :
aboveboard, authentic, bona fide, fair and square, fair-minded, foursquare, genuine, good-faith, on the level, on the square, on the up-and-up, open, open and aboveboard, single-hearted, sporting, sportsmanlike, sportsmanly, square, square-shooting, straight, straight-shooting, up-and-up, veritable