Slavic /ˈslɑːvɪk/adjective 1noun 1forms 2 adjective1 •Of the Slavs, their cultures, or the branch of the Indo-European languages associated with them.Forty-five-year-old Maria Sedlakova, a small dark roly-poly woman with high cheekbones in a very Slavic face, interrupted furiously. — 1971 noun1 •Any of various languages spoken by the Slavic peoples, such as Proto-Slavic, Common Slavic, Old Church Slavic, or the modern Slavic languages.It is a commonly known fact that formal marks of perfective aspect in Slavic are prefixes. formsmore Slavic · most Slavic