honestThe new MP was refreshingly honest with her constituents.
sincereHe's so sincere that you know exactly where you stand with him.
truthfulAre you being truthful with me?
trustworthyIn a small town, if someone isn't trustworthy, everyone knows it.
reputableMake sure you insure your home with a reputable company.
candidWe had a very candid discussion.
frankTo be frank, I didn't know what I was doing.
openHe's quite open about his weaknesses.
transparentThe management promised to be totally transparent about where the funds were spent.
guilelessAs a child she was exuberant and guileless.