It is considered the ideas of lacunarity as a significant absence of a language element in the con-text of analyzing the grammatical structure, which leads to typological restructuralization. The modern dominance of English as a standard analytical language affects not only the lexical systems of other languages, but also determines the analytization of their grammar. Interlanguage lacunarity, being a manifestation of the ontological feature of language as an information system, is growing in modern conditions due to the accumulation of analytical properties in inflectional languages. The authors prove that cross-language grammatical lacunarity is caused by the uneven processes of analytical grammatical systems of different languages, and investigate the grammatical analytical processes which form interlanguage lacunarity, on the material of indeclinable nouns in the Russian language.