The phrase "be rough on someone" refers to treating a person in a harsh, unfair, or unkind manner. There are several synonyms for this expression that can be used to describe similar behavior, such as "be hard on someone," "be tough on someone," "be critical of someone," or "be severe with someone." These phrases imply that someone is facing challenging circumstances without much support or empathy from others. They can be used to describe situations where someone is facing criticism, judgment, or rejection, often without any real reason. The various synonyms for "be rough on someone" help to describe the same sentiment but with slightly different nuances, depending on the context.