More coarsened refers to something that has become rougher or less refined over time. There are several synonyms that can be used to describe this state, including rugged, unpolished, or crude. These words can be used to describe a variety of situations - from the texture of a piece of fabric to the behavior of a person who has become more abrasive or insensitive. Other synonyms for more coarsened might include things like roughened, brusque, or abrasive. It's important to choose the right word to describe the specific situation or object that you're referring to, but these words can help to convey the idea of something becoming rougher or less refined.