verschlossenem

Verschlossenem is a declined form of the German adjective verschlossen, meaning closed, sealed, or guarded. As an attributive adjective it appears in the dative singular masculine or neuter form, typically when no determiner is present or after a preposition that governs the dative case.

In practice, verschlossenem is used in phrases describing a masculine or neuter noun in the dative case without a definite article, or after prepositions such as mit, aus, bei, and similar. For example: mit verschlossenem Fenster (with a closed window) and aus verschlossenem Raum (out of a locked room). Because the noun is in the dative singular and the determiner is absent or neutral, the ending -em is added to verschlossen.

Verschlossenem contrasts with forms that would appear with definite articles or other determiners. For instance, with a definite article you would say dem verschlossenen Fenster or dem verschlossenen Raum, where the adjective takes the ending -en in the dative singular after a definite article. The feminine singular in the dative would use a different ending, such as der verschlossenen Tür, and would not produce verschlossenem.

Beyond physical locking, verschlossen can also carry figurative senses (reticent, secretive). The form verschlossen remains the base participle used for these senses, while verschlossenem is a specific inflected form used in the dative singular masculine or neuter.

In summary, verschlossenem is the dative singular masculine/neuter attributive form of the adjective verschlossen, commonly found after prepositions or in contexts lacking a determiner.