adjektiivisia

Adjektiivisia is the plural partitive form of the Finnish adjective adjektiivinen, meaning “adjectival” or “adjective-related.” The term is used in linguistic and grammatical contexts to refer to adjectives or adjectival expressions when described as a category or when they occur in contexts requiring the partitive plural form.

In Finnish, adjectives decline for number and case to agree with the noun they modify. The ending -isia signals plural partitive usage, typically with a plural noun in the partitive case. For example: adjektiivisia ilmauksia meaning “adjectival expressions,” and adjektiivisia ominaisuuksia meaning “adjectival properties.” The form also appears in broader discussions of adjectives as a grammatical class, such as in phrases like adjektiivisia ja substantiivisia ilmauksia (“adjectival and nominal expressions”).

Common inflectional forms related to adjektiivinen include: adjektiivinen (singular nominative), adjektiivista (partitive singular), adjektiivisia (partitive plural), and adjektiiviset (nominative plural). These endings reflect Finnish’s system of vowel harmony and noun–adjective agreement, allowing adjectives to modify nouns across various syntactic roles.

Origin and usage notes: The term adjektiivinen derives from the Latin adiectivus, via German Adjektiv, and entered Finnish to label words that describe properties of nouns. In linguistic analysis, adjektiivisia is a convenient label for discussing multiple adjectives or adjectival phrases within a sentence or text. It is mainly encountered in formal or academic Finnish rather than in everyday speech.