drsným

The word "drsným" is the instrumental singular masculine or neuter form of the Czech adjective "drsný". In its core meaning, "drsný" translates to "rough," "harsh," "coarse," or "tough." The instrumental case in Czech is used to indicate the instrument or means by which an action is performed, or to express a characteristic that something possesses.

Therefore, "drsným" would be used in a sentence to describe something being done *by means of* something rough or harsh, or to describe a masculine or neuter noun *as being* rough, harsh, coarse, or tough. For instance, it could refer to a rough surface, a harsh climate, a coarse material, or a tough person. The specific nuance of meaning depends heavily on the context in which the word appears. It can describe physical textures, environmental conditions, or even abstract qualities like a person's demeanor or a situation's difficulty.