PERMANENCE
permanence, permanency
(noun) the property of being able to exist for an indefinite duration
Source: WordNet® 3.1
Etymology
Noun
permanence (countable and uncountable, plural permanences)
The state of being permanent.
(physics) The reciprocal of magnetic inductance.
Synonyms
• (state): perdurance, remanence; see also permanence
Antonyms
• (state): transience
• (state): impermanence
Source: Wiktionary
Per"ma*nence, Per"ma*nen*cy, n. Etym: [Cf. F. permanence.]
Definition: The quality or state of being permanent; continuance in the
same state or place; duration; fixedness; as, the permanence of
institutions; the permanence of nature.
Source: Webster’s Unabridged Dictionary 1913 Edition