johtavalla
johtavalla is a Finnish word form that functions as the adessive singular of the adjective johtava, meaning leading or principal. It is derived from the verb johtaa, “to lead,” via the present active participle suffix -va/-vä. In Finnish, adjectives inflect to agree with the noun they modify in case, number, and definiteness; therefore johtavalla appears when the modified noun is in the adessive case (on/at/in the sense of location or context).
The word is used to describe someone or something that holds a leading position, status, or influence
As a modifier, johtava is the base form (nominative singular) used when the noun follows directly, as