Finnish /ˈfɪn.ɪʃ/adjective 2noun 1 adjective2 •Of or pertaining to Finland or the Finns; Finlandic, Finlandish.Culturally and economically Finland is a Western nation. But would the Finns fight if the Soviets tried to use Finnish territory as a springboard to attack NATO? — 1989 •Of or pertaining to the Finnish language. noun1 •The Finno-Ugric language spoken by the majority of the people living in Finland, one of the two official languages of the country (the other is Swedish).