laajuisen

Laajuisen is a Finnish grammatical form: it is the genitive singular form of the adjective laajuinen, which means extensive, wide, or broad. In Finnish, adjectives agree with the nouns they describe in case, so laajuinen takes different endings depending on the noun’s case and number. The form laajuisen appears when the noun it modifies is in the genitive singular, as in phrases that express possession or association.

Etymology and use: laajuinen is formed from laajuus (extent) plus the adjectival ending -inen, yielding a word that describes size or scope. The genitive singular ending typically results in laajuaisen in standard Finnish, used before a genitive noun such as alueen or tutkimuksen. In practice, texts may occasionally show slight orthographic variants, but laajuinen remains the base adjective and laajuisen functions as its genitive singular form in context.

Examples:

- Laajuisen alueen suunnittelu on tärkeää kaupungin kehittämisessa. (Planning of the extensive area is important in city development.)

- Tutkimus laajuisen projektin vaikutuksista julkaistaan ensi vuonna. (The study of the extensive project’s effects will be published next year.)

Notes:

- Laajuisen is not a separate independent word with its own meaning beyond being the inflected form of laajuinen; its role is grammatical, modifying a noun in genitive.

- Common related forms include laajuinen (nominative singular), laajuisen (genitive singular in some standard inflection patterns), and laajuisten (genitive plural), all of which share the core meaning related to extent and scope.

See also: Finnish adjectives, declension of -inen adjectives, Finnish grammar, etymology of laajuus.