ominaislujuuden
Omnaislujuuden is a theoretical term found in speculative philosophy and design discourse, used to describe the degree to which an object’s or agent’s essential properties endure under change. The word is formed from Finnish roots: ominaisuus meaning property and lujuus meaning strength, with ominaislujuuden representing “the strength of properties” in its genitive form. In analytic discussions, the concept serves to distinguish superficial or surface-level changes from deeper, invariant aspects of an entity.
The concept is typically analyzed along two dimensions. Intrinsic invariance refers to how resistant the core
Applications of ominaislujuuden appear in ontology and discussions of identity over time, as well as in the
Critics note that measuring “strength of properties” can be vague and context-sensitive, risking conflation of identity,
See also: persistence, identity over time, robustness, essential properties, ontology.