epäelastisiin
Epäelastisiin is a Finnish adjective form meaning non-elastic or inelastic. It is used to describe materials, systems, or behaviors that do not recover fully their original shape after deformation. In Finnish, the prefix ep- conveys negation, so epäelastinen is opposed to elastinen (elastic). The form epäelastisiin is an inflected variant used when describing plural nouns in certain grammatical cases, for example when referring to forces or responses directed at non-elastic materials.
Etymology and nuance: the term combines epäs- (not) with elastinen (elastic), which in turn derives from the
Usage and contexts: epäelastisiin is common in materials science, mechanical and civil engineering, and physics when
Relation to related terms: epäelastinen is contrasted with elastinen (elastic) and plastinen (plastic) in Finnish technical
See also: elasticity, inelasticity, plastic deformation, viscoelasticity.