redundant
https://gyazo.com/f7ae07dbc207589833234f305e91fbe3
source: How redundantly redundant : Animemes
adjective
not or no longer needed or useful; superfluous:
〈物･事が〉余分な, 不必要な
e.g. many of the old skills had become redundant
e.g. this redundant brewery has been converted into a library.
British (of a person) no longer employed because there is no more work available:
｟英｠ ; 〖通例be ～〗 〈労働者が〉余剰で, 解雇されて(｟米｠ laid off)
e.g. eight permanent staff were made redundant.
(of words or data) able to be omitted without loss of meaning or function:
〈表現･文体などが〉冗漫な
e.g. our peculiar affection for redundant phrases
e.g. most of the inflectional endings are redundant.
Engineering (of a component) not strictly necessary to functioning but included in case of failure in another component.
〈装置などが〉冗長性のある, 代理機能のある
DERIVATIVES
redundantly adverb
ORIGIN
late 16th century (in the sense ‘abundant’): from Latin redundant- ‘surging up’, from the verb redundare (see redound).