Going from Ukrainian to Slovenian (Slovenลกฤina) has a composite linguistic distance of 49% (heuristic estimate). Below is the dimension-by-dimension breakdown.
Shared vocabulary, cognates, and loanwords.
Morphology, syntax, word order, cases.
Shared sounds and phoneme inventory.
Cyrillic โ Latin
Indo-European โ Indo-European
The 5 languages with the lowest linguistic distance from Ukrainian:
A quick 3-question check between Ukrainian and Slovenian. No signup.