ádném
ádném is not a standalone standard word in Czech. It is best understood as the locative singular inflection of the determiner žádný, used after prepositions that require the locative case. In standard orthography the full form includes the initial ž, written as žádném. For example: v žádném domě (in no house), v žádném případě (in no case), o žádném jídle (about no food). The function is to express negation or absence within a specific context.
In Czech, žádný behaves as a negative determiner that agrees with the noun it modifies. Its principal
Orthographic note: ádnem without the initial ž is not standard; such a form is typically a misspelling
Etymology generally traces žádný to the negative determiner family in Czech, historically related to the interrogative
See also: žádný, žádná, žádné, česká gramatika (Czech grammar).