alueellisissa

alueellisissa is the inessive plural form of the Finnish adjective alueellinen, meaning regional. It is used when describing multiple nouns that are in the inessive case and relate to regions, such as things located within or pertaining to several regions. The form appears in contexts like administration, statistics, and regional planning, where the reference is to regional-level entities or phenomena pluralized.

In practice, alueellisissa combines the plural marker with the inessive case. It is written as alueellisissa when the governing noun is plural and in the inessive, for example: alueellisissa tilastoissa (in regional statistics), alueellisissa viranomaisissa (in regional authorities), and alueellisissa yksiköissä (in regional units). The base nominative plural form is alueelliset, while the corresponding inessive plural is alueellisissa.

Morphology and usage follow standard Finnish adjective agreement rules: alueellinen changes to agree with the number and case of the noun it modifies, with alueellisissa serving as the inessive plural form. The construction is common in official or descriptive Finnish, where distinctions between regional levels are relevant.

Etymology and related forms: alueellisissa derives from alueellinen, which itself comes from alue (region) plus the adjectival ending. This form is part of the broader system of Finnish inflection, where adjectives reflect the case, number, and, if needed, definiteness of the nouns they describe.

See also: Finnish grammar, adjectives, inessive case, regional administration.