OBSOLETENESS
obsoleteness, superannuation
(noun) the property of being out of date and not current
Source: WordNet® 3.1
Etymology
Noun
obsoleteness (countable and uncountable, plural obsoletenesses)
The quality or state of being obsolete or no longer in use.
(biology) The quality of being imperfectly or indistinctly developed.
Synonyms
• (being no longer in use): obsolescence
Source: Wiktionary
Ob"so*lete*ness, n.
1. The state of being obsolete, or no longer used; a state of
desuetude.
2. (Biol.)
Definition: Indistinctness; want of development.
Source: Webster’s Unabridged Dictionary 1913 Edition