Permanence

Name(s): 
Rigidity
Nature

Permanence is the state of being permanent:

Digital permanence Object permanence Print permanence

In popular culture:

Permanence (novel) by Karl Schroeder

In science:

The inverse of inductance.

In music:

Permanence (album), a 2015 album by No Devotion

Source: Wikipedia

Broader 
Type 
(A) Abstract fundamental problems