sileämmän

Sileämmän is the genitive singular form of the Finnish adjective sileämpi, which is the comparative form of sileä meaning "smooth." In Finnish, adjectives decline for case and number, and the genitive singular of sileämpi is sileämmän. The form is used to modify a noun in a way that identifies the thing as being smoother in comparison to another.

In practical use, sileämmän appears in noun phrases where a relative quality is being described. For example, in the phrase sileämmän pinnan, the word sinew is glossed as “the smoother surface,” with pinnan being the genitive singular of pinta (surface). Thus sileämmän pinnan translates to “the smoother surface” in English. The form is grammatically required in contexts that involve possession or association with a noun in the genitive case.

Usage notes: sileämmän is not a standalone noun but an inflected adjective. It typically appears in technical, scientific, or descriptive writing where comparison between surfaces, textures, or finishes is being stated. Other related forms include sileämpi (the comparative adjective in nominative singular) and sileimmät (superlative forms in appropriate cases and numbers). As with other Finnish adjectives, the exact ending changes to agree with the noun’s case and number in a sentence.

See also: sileä, sileämpi, Finnish grammar, adjectives in Finnish, comparative and superlative forms.