Inhumane means very cruel — so cruel that the pain it causes feels too much to accept. We use it about how living things are treated: animals on a farm, people in a prison, a rule in war, a way of punishing. An inhumane act or system does not care that someone is hurting. It is a strong, serious word. You will see it in the news, in talk about animal care, and in arguments about right and wrong, not much in light chat. It is the opposite of humane, which means kind and careful with pain. It looks like inhuman, and a lot of people use the two as if they were the same word for “cruel.” Though actually, careful speakers keep a thin line: inhuman can also mean “not like a person at all” — cold, like a machine, or more than human — while inhumane almost always points at cruel treatment. In real news English the two mix a lot, especially about farms, prisons, and war.