An honest person; someone who is truthful, straightforward, and sincere in words and actions.
彼は正直者だから、きちんと不利な点も話してくれる。
He's an honest person, so he tells you clearly even the drawbacks.
正直者は時に損をすることもあるが、信頼は得やすい。
Honest people may sometimes lose out, but they tend to gain trust easily.
子どもの頃から彼は正直者と評判だった。
He had a reputation for being honest since childhood.