Nezmnná

Nezmnná is a coined term used mainly in speculative discourse and science-fiction contexts to denote a property or entity that remains invariant under all conceivable transformations. The word appears to be a Czech neologism, likely built from the prefix ne- (not) combined with a root intended to evoke change, but it is not an established term in standard Czech or in formal philosophy. In published discussions, nezmnná is described as a hypothetical constant of ontology or as a feature of a being whose essential nature cannot be altered.

In practice, nezmnná is often employed to explore ideas about identity, determinism, and the limits of intervention. Interpretations vary: some writers treat it as an absolute, indivisible essence that persists through physical, temporal, or epistemic changes; others use it as a thought experiment to consider how much of a system can be altered before its core meaning or function is lost. The concept is typically framed as a fictional or hypothetical construct rather than a real-world category, which means there is no single agreed-upon definition or formal criteria.

Usage and reception are mainly confined to creative writing, fan discussions, and role-playing communities where such abstractions help examine continuity, memory, and the persistence of meaning. Because nezmnná is a deliberately obscure and context-dependent term, its interpretation tends to be shaped by the narrative or argumentative framework in which it appears.

See also immutability, invariance, constant.