Nubian. n. 1. (Peoples) a native or inhabitant of Nubia, an ancient region of NE Africa. 2. (Languages) the language spoken by the people of Nubia. 3. (Placename) the language spoken by the people of Nubia. adj. 4. (Placename) of or relating to Nubia or its inhabitants. 5. (Peoples) of or relating to Nubia or its inhabitants.