genetiiviseen

Genetiiviseen is the illative singular form of the Finnish adjective genetiivinen, which means “genitive” or “genitive-related.” In Finnish, adjectives inflect to agree with the nouns they modify in number and case, so genetiivinen can take various case endings just like nouns do. Genetiiviseen specifically marks the illative case.

As an illative form, genetiiviseen appears when the noun it modifies is in the illative case, indicating direction toward or into something. In practical terms it functions as an adjective in illative form. Examples in context include genetiiviseen muotoon (into the genitive form) and genetiiviseen tapaan (in a genitive manner). These phrases illustrate how the illative ending attaches to the base adjective to create a phrase that describes how something is expressed or handled with respect to the genitive.

Morphology and usage notes: genetiiviseen is formed following the standard pattern for adjectives in the -inen group, by applying the illative suffix -iseen to the stem of genetiivinen. The form is primarily encountered in linguistic or grammatical descriptions rather than everyday speech. It is not a separate word with its own independent meaning; rather, it is a grammatical form used to describe or modify nouns in the illative case.

See also: Finnish grammar, genitive case, Finnish adjective declension, illative case.