wasserdichtem

Wasserdichtem is the dative singular form of the German adjective wasserdicht, meaning waterproof. It is not a separate lexical item but an inflected form used when the adjective modifies a masculine or neuter noun in the dative case, typically without a determiner, or after prepositions that require the dative. For example: mit wasserdichtem Material (with waterproof material), in wasserdichtem Gehäuse (in a waterproof housing), aus wasserdichtem Stoff (made of waterproof fabric).

Grammatical notes and usage patterns help clarify its appearance. In German, adjectives take different endings depending on case, gender, number, and whether a determiner is present. The form wasserdichtem appears in the dative singular for masculine or neuter nouns when there is no article or when the context allows a strong declension without an article. By contrast, with a definite article in the same position, the ending would be wasserdichten (dem wasserdichten Gehäuse). For feminine nouns in the same situation, the form would typically be wasserdicht(e) with the appropriate feminine ending.

In technical and consumer contexts, wasserdicht describes a property of objects designed to prevent water ingress. The term is commonly used in product specifications alongside measures of water resistance, such as IP ratings, depth, or duration. While wasserdicht focuses on impermeability to water, related terms cover broader protection against moisture, corrosion, or weather exposure.

See also: wasserdicht (the base form), wasserdichtigkeit or Wasserdichtigkeit, IP ratings and water resistance terminology in German.