Slovenian /sləˈviːni.ən/noun 2adjective 1forms 1 noun2 •A person from Slovenia.Mom had called Cory, who contacted Vlado, who brought a crew of Slovenians over to help. — 2021 •The official language of Slovenia. adjective1 •Of or pertaining to Slovenia, the Slovenian people or the Slovenian language. formsSlovenians