vakavuisilla
Vakavuisilla is a term that can refer to a number of things depending on the context, but it generally relates to a state of being serious, solemn, or grave. In Finnish, "vakava" means serious, and the plural form "vakavuisilla" often implies a collective or shared experience of this seriousness.
One possible interpretation of "vakavuisilla" is in a social or emotional context, describing a group of people
In some instances, "vakavuisilla" might also be used to describe a situation or a set of circumstances
Linguistically, the grammatical structure of "vakavuisilla" suggests a locative case, implying "in a state of seriousness"