sileisiin

Sileisiin is a Finnish grammatical form, specifically the plural illative of the adjective sileä, meaning smooth. It functions as an inflected modifier that indicates movement toward or into smooth things when the modified noun is plural. In practice, qil phrases such as sileisiin pintoihin (into smooth surfaces) illustrate the use, where the adjective agrees in number and case with the noun it describes.

Morphology and usage notes

- Sileä serves as the base adjective; adding the illative plural ending yields sileisiin.

- The form contrasts with other inflected forms of sileä, such as sileät (nominative plural) and sileiden (genitive plural), which do not carry the illative meaning.

- Sileisiin is typically used in descriptive, literary, or poetic contexts to emphasize texture, surface quality, or tactile impressions of multiple objects or surfaces.

Functional considerations

- The illative plural is a directional case, and sileisiin is used when the sentence conveys moving toward or into more than one smooth item.

- The construction requires a plural noun in illative form to pair with the adjective.

Examples and context

- Into smooth surfaces can be expressed with sileisiin pintoihin.

- The form can appear in descriptions of materials, crafts, or natural scenes where multiple items share a smooth texture.

See also

- Finnish grammar

- Finnish adjectives

- Illative case

Sileisiin thus stands as a specific, context-dependent inflected form rather than a standalone lexical item, illustrating how Finnish adjectives adapt to number and case to convey direction and description.