Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
Slovenian [sləuˈviːnɪən] adj слове́нский#
n (person) слове́нец*-нка] (LING) слове́нский*язы́к#
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
Русский: