klassischem

Klassischem is a grammatical form rather than a standalone concept. It is the dative singular form of the German adjective klassisch, meaning classical or traditional, used when describing masculine or neuter nouns in the dative case in contexts without a determiner or after certain prepositions.

In German, adjectives change endings based on case, gender and article. In the dative singular, the ending -em appears for masculine and neuter nouns when the noun is not preceded by a definite article, yielding klassischem. For example: in klassischem Stil (in the classical style) or nach klassischem Muster (according to classical pattern). By contrast, with a definite article the form shifts to dem klassischen Stil or dem klassischen Muster, where the adjective takes an -en ending.

Feminine nouns in the dative use different endings (for example, in der klassischen Musik). The specific form klassischem is therefore tied to masculine and neuter nouns in dative singular under strong declension or in prepositional phrases without a determiner.

Common usage of the form appears in discussions of design, architecture, music, and cultural history, where a phrase like in klassischem Stil or mit klassischem Design signals adherence to traditional or established conventions.

See also: klassisch, Klassik, German grammar endings, declension patterns.