nopeilla

Nopeilla is a Finnish inflection of the adjective nopea, meaning fast or quick. It is the plural adessive form, used to describe multiple nouns in the adessive case. As a grammatical form, nopeilla does not carry a separate lexical meaning beyond the base adjective; its function is to modify a head noun in phrases such as those describing location, state, or manner with several items.

In practice, nopeilla appears in phrases where the head noun is in the adessive plural. Examples include nopeilla autoilla (by fast cars) or nopeilla järjestelyillä (with fast/rapid arrangements). The form is commonly found in descriptive or instructional text about Finnish grammar, as well as in literary or journalistic writing that aims to describe characteristics of multiple items.

Notes on use: nopeilla must accompany a head noun; it cannot stand alone as a complete word. The form reflects the general pattern of Finnish adjective inflection, where the ending -illa/-illä marks the adessive case in the plural. It is distinct from related forms such as nopean (partitive or genitive form of the adjective) and from the noun nopeus (speed).

See also: Finnish grammar, Adjective declension in Finnish, Adessive case, Finnish case system.