niedrigen
Niedrigen is not a standalone lexical item in German, but the inflected form of the adjective niedrig (low, small) used in the weak declension after a determiner that marks gender, number, and case. The form appears most notably as "niedrigen" in various singular and plural contexts where a definite article or a determiner carrying full grammatical information precedes the noun.
In practice, niedrigen occurs in several common situations. It appears in the dative singular for masculine
Examples illustrate typical usage: Die niedrigen Berge ragen am Horizont auf. Ich sehe die niedrigen Berge.
Overall, niedrigen is a functional form within German grammar, signaling a weak declension of niedrig in plural