adj. 1 direct, straightforward, plain, frank, open, candid, plain-spoken, explicit, blunt, brash, bluff, not roundabout or circuitous, unambiguous, out-and-out, outright, categorical, flat, unequivocal, outspoken, unreserved, unabashed, unrestrained, unconstrained, bold She speaks with a downright honesty you have to admire
adv. 2 completely, entirely, totally, thoroughly, certainly, surely, (most) assuredly, definitely, absolutely, unconditionally, unequivocally; very, extremely, unqualifiedly, perfectly, uncompromisingly, unmitigatedly, utterly, unquestionably, profoundly, undoubtedly, indubitably It's downright stupid of you to leave in this weather