sniujícího
The term "sniujícího" is the genitive singular masculine/neuter form of the present active participle of the Czech verb "snižovat" or "snížit". These verbs translate to "to lower", "to reduce", "to decrease", or "to diminish" in English. Therefore, "sniujícího" literally means "of the lowering", "of the reducing", "of the decreasing", or "of the diminishing" entity.
In grammatical context, "sniujícího" would be used to describe something that is in the process of becoming
The exact nuance of "sniujícího" depends heavily on the context of the sentence and the noun it