There are several synonyms for the phrase "more plain-spoken", including straightforward, candid, frank, honest, direct, and unambiguous. Each of these words conveys the idea of speaking plainly and clearly, without any unnecessary complexity or ambiguity. Someone who is straightforward, for example, is easy to understand and lacks any hidden agendas. A candid person is honest and plain-spoken, while a frank person is open and truthful, even if their opinions may be unpopular. Someone who is direct is straightforward and to the point, while an unambiguous person is clear and easy to understand. All of these words convey the idea of plain-spokenness in different ways, making them useful alternatives for different contexts.