sisäisten

Sisäisten is a Finnish grammatical form that functions as the genitive plural of the adjective sisäinen, meaning internal or inner. It is used in noun phrases to indicate belonging to or characteristic of internal matters within a group, organization, or system.

In Finnish, adjectives agree with the nouns they modify in number and case. When the head noun is plural and in the genitive case, the adjective typically takes the genitive plural ending, giving sisäisten. Examples include organisaation sisäisten sääntöjen rikkominen (the violation of the organization’s internal rules) and yrityksen sisäisten prosessien kehittäminen (the development of the company’s internal processes). The exact meaning of sisäisten depends on the accompanying noun.

Sisäisten is most common in formal or technical writing, especially in administrative, legal, or policy contexts where distinctions between internal and external elements are relevant. It is not a standalone noun; rather, it forms part of a larger noun phrase describing internal aspects.

Etymologically, sisäisten derives from sisäinen (internal) with the genitive plural ending, reflecting Finnish grammar’s system of agreement between adjectives and their head nouns. The form is used to express relationships such as internal regulations, internal processes, or internal matters within a collective entity.

See also: sisäinen, Finnish grammar, genitive case, adjective declension in Finnish.