viihteellistävän
The Finnish word "viihteellistävän" is the genitive plural form of the participle of the verb "viihteellistää". "Viihteellistää" translates to "to make entertaining" or "to render amusing". Therefore, "viihteellistävän" essentially means "of those that make entertaining" or "of the things that are being made entertaining".
This grammatical form typically functions as a possessive or a partitive in a sentence. For example, one