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.
Usage and reception are mainly confined to creative writing, fan discussions, and role-playing communities where such