ymmärtävän
Ymmärtävän is a Finnish word formed as the genitive singular of the present active participle ymmärtävä, which comes from the verb ymmärtää (to understand). The participle denotes the quality of understanding or being understanding and is commonly used as an attributive adjective.
In Finnish, present active participles behave like adjectives and decline to agree with the noun they modify
The base form ymmärtävä is used in non-genitive positions, as in ymmärtävä opettaja = an understanding teacher.
Grammatically, ymmärtävä belongs to the class of -va/-vä adjectives and follows standard Finnish participle agreement rules.
See also: ymmärtäminen (the noun form “understanding”), ymmärtäväisyys (the quality of being understanding), other present active