Slovenian itself is not uniform btw. Actually very far from that.
"There are 46 different dialects in Slovenia"
On account of only 2.3 million people speaking the language, the 46 dialects of Slovenian language, often classifies Slovene as the most diverse Slavic Language. Slovenian dialects are categorized into seven regional groups: Carinthian, Upper Carniolan, Lower Carniolan, Littoral, Rovte, Styrian, and Pannonian. Sometimes dialects can be so different from one other, that it is hard for people from different parts of Slovenia to understand each other. The diversity of the Slovenian language is well captured in a Slovene proverb “Vsaka vas ima svoj glas “, meaning “every village has its own voice.”
https://theculturetrip.com/europe/sl...nian-language/

