Similar word to plaindealing:

aboveboard, barefaced, candid, direct, forthright, frank, genuine, guileless, honorable, just, laid on the line, level, like it is, mellow, open, outspoken, plain, plain-dealing, pretenseless, right-on, sincere, square-shooting, straight, straight-arrow, talking turkey, truthful, unconcealed, undisguised, undissembled, undissembling, unequivocal, unvarnished, up front, upright, upstanding, veracious