unveränderlichen

Unveränderlichen is the inflected form of the German adjective unveränderlich, which translates as unchangeable or immutable. It is used to describe something that does not change within a defined context, such as a property of a system, a data value, or a physical characteristic.

Grammatically, unveränderlich follows the rules of German adjective declension. The form unveränderlichen occurs primarily in plural contexts with a definite determiner, for example: die unveränderlichen Eigenschaften, mit den unveränderlichen Daten. In other cases, the ending varies by case and article, as in unveränderliche Eigenschaften (indefinite plural) or die unveränderlichen Merkmale (plural after the definite article). The form can also appear in other cases in compound noun phrases, depending on the syntactic role of the noun it modifies.

In scientific and philosophical writing, unveränderlich is often used to describe attributes that remain fixed under specified conditions; more technical terms such as Invariante or invariants are also common in those fields. In computing and software design, unveränderliche objects or Werte are those whose state cannot be modified after creation, such as immutable strings in many programming languages or immutable data structures in functional programming.

Etymologically, unveränderlichen derives from the prefix un- meaning “not” and verändertlich (from verändern, “to change”). The form reflects standard German adjective agreement with plural nouns and is typical in both everyday language and technical prose.