neizvediv (Serbo-Croatian) comes from Serbo-Croatian izvèdiv, from Serbo-Croatian izvesti, from Serbo-Croatian iz, from Proto-Slavic jьz, from Proto-Balto-Slavic iź, from Proto-Indo-European h₁eǵʰs — out.
neizvediv (Serbo-Croatian): impractical, unfeasible