Yleisimmällä
Yleisimmällä is a Finnish grammatical form used as the adessive singular of the superlative adjective derived from the adjective yleinen, meaning general or common. In gloss, it expresses “in the most common [way/place/state]” or indicates the most typical degree of frequency or ubiquity when describing a noun in a specific case. The form is part of Finnish adjective declension, where the superlative stem yleisimm- takes case endings such as -llä for the adessive.
Yleisimmällä is typically found in phrases that describe how something is done or located in the context
The base adjective is yleinen, with comparative and superlative forms used to express varying degrees of commonness
yleinen, yleisempi, yleisimmän, yleisimmät, yleisimmillä, yleisimmillä tavalla.