na ‧ tion ‧ al ‧ is ‧ tic /ˌnæʃ ə nəˈlɪstɪk◂/ BrE AmE adjective
[ Word Family: noun : ↑ nation , ↑ national , ↑ multinational , ↑ nationalism , ↑ nationalist , ↑ nationality , ↑ nationalization , ↑ nationhood , ↑ international , ↑ internationalism , ↑ internationalist , ↑ internationalization ; adjective : ↑ national , ↑ international , ↑ multinational , ↑ nationalist , ↑ nationalistic , nationalized, ↑ internationalist ; verb : ↑ nationalize , ↑ internationalize ; adverb : ↑ nationally , ↑ internationally ]
someone who is nationalistic believes that their country is better than other countries ⇨ patriotic :
They were encouraging nationalistic sentiment among the students.