This is the 4518th most frequent German word.
niedrigen
"Low" or "low-level."
Here, 'niedrigen' describes the position of the clouds being physically low in altitude.
Die niedrigen Wolken hingen über dem Tal.
The low clouds hung over the valley.
'Niedrigen' is used figuratively to describe the opinion's low quality.
Er hat eine niedrigen Meinung von dem Film.
He has a poor opinion of the movie.
In this instance, 'niedrigen' refers to a numerical value being low, specifically the salary.