Redundant

Part of speech: adjective

Pronunciation: /ɹɪˈdʌn.dənt/

Definitions

1. Being marked by unnecessary duplication or surplus elements that do not contribute additional value
2. Containing more than what is needed, especially by repeating information or functionality without improving effectiveness
3. Characterized by excessiveness where elements or parts are repeated or superfluous, making them dispensable

Etymology: Latin "redundare" meant "to overflow" or "to surge back," and it was built from "red-," meaning "again" or "back," plus "undare," "to surge," which itself came from "unda," a wave. The image is literal: water spilling over a container's brim, or a flood pouring back. The adjective "redundant" in English kept that sense of excess and overflow, so something redundant is more than is needed, the surplus that spills past what the space can hold. Over time the idea of surplus narrowed into the modern sense of superfluous repetition. A redundant phrase says the same thing twice, and a redundant worker is one whose job no longer needs filling. Engineers later adopted the term for backup components built in case a primary part fails, which turns the old notion of excess into a deliberate safeguard.

Synonyms: superfluous, excess, unnecessary

Antonyms: necessary, essential