syntetisiin

Syntetisiin is the illative plural form of the Finnish adjective syntetinen, meaning synthetic. It is used when the adjective modifies a noun in the illative case in the plural, indicating direction into or toward something that is synthetic. In Finnish, adjectives agree with the noun in number and case, so syntetinen takes the illative plural ending -isiin when the head noun is in plural illative. Common collocations include syntetisiin materiaaleihin, syntetisiin raaka-aineisiin and syntetisiin polymeereihin.

Grammatical details: Syntetisiin functions as a descriptive modifier tied to a plural noun in illative, not as an independent noun. It appears in technical and scientific writing to specify materials, substances or components that are synthetic rather than natural. The ending -isiin is part of the standard illative plural pattern for adjectives in Finnish, and blends with nouns such as materiaali (material), raaka-aine (raw material), or polymeeri (polymer).

Usage: The form is typical in contexts discussing materials, manufacturing, chemistry or materials science where distinctions between synthetic and natural are relevant. It is used with head nouns in plural illative form, for example syntetisiin materiaaleihin, syntetisiin polymeereihin, syntetisiin raaka-aineisiin, to convey “into synthetic materials” or “into synthetic raw materials.”

Etymology: Syntetisiin derives from syntetinen, which in turn comes from the root synthe- related to synthesis, ultimately from Latin syntheticus and Greek synthetikos. The Finnish form mirrors related adjectives in the illative plural.

See also: syntetinen, syntetisoida, syntetisoituminen, Finnish grammar illative.