derivatiivisissa

Derivatiivisissa is a Finnish adjective-inflected form meaning “in derivational” or “in derivational forms.” It is used primarily in linguistic contexts to refer to phenomena or forms that arise through derivation, as distinct from inflection. The form is the inessive plural of derivatiivinen, and it grammatically marks location within derivationally formed forms or categories.

In Finnish morphology, derivation is the process that creates new words by attaching derivational affixes. The adjective derivatiivinen is used to describe such processes, and its plural inessive form derivatiivisissa appears when the modified noun is plural and inessive. Example: "Sanoja voidaan tarkastella derivatiivisissa muodoissa," meaning "Words can be examined in derivational forms."

In mathematics and science, derivation is usually referred to with the noun derivaatio (derivative) rather than derivatiivinen; nevertheless, the adjective can appear in broader theoretical discussions about derivative-related concepts. Because it is an inflected form, derivatiivisissa is not a separate concept but a grammatical tool enabling precise description of derivational phenomena in Finnish texts. It illustrates how Finnish encodes derivation as morphology.

See also: Derivaatio, Derivatiivinen, Derivaatio (math).