A harsh person is someone who is perceived to be uncompromising and unkind in their behavior towards others. Synonyms for such an individual include stern, severe, rough, and abrasive, all of which suggest a lack of empathy or understanding towards those around them. Other words that might be used to describe a harsh person include callous, cruel, unfeeling, and unsympathetic, all of which suggest a deliberate indifference to the suffering or feelings of others. Some might also describe a harsh person as being mean, cruel, or even vicious, depending on the degree and severity of their behavior towards others. Ultimately, a harsh person is someone who is difficult to deal with and often makes the lives of those around them harder than they need to be.