■ adjective
1》 no longer needed or useful; superfluous.
↘(of words) able to be omitted without loss of meaning or function.
↘ Engineering (of a component) not strictly necessary but included in case another component fails.
2》 Brit. (of a person) no longer employed because there is no more work available.
Derivatives
redundancy noun ( plural redundancies ).
~ly adverb
Origin
C16 (in the sense 'abundant'): from L. ~- , redundare (see redound ).