Rumah adat is a type of house in Indonesia. It's a traditional house, which means it is built in a certain way that is unique to the culture in Indonesia. It usually has a roof shaped like a cone, made out of long, thick coconut leaves. It also has four walls made out of wood, and strong bamboo poles to hold up the roof. Inside, the house is divided into different parts, like a living room, kitchen, and bedrooms. It's usually decorated with beautiful, traditional carvings, paintings, and embroidery on the walls and furniture.