Repetitive means repeating something over and over again, unnecessarily. Repetitive is an adjective, related words are repetitively, repetitiveness. The word repetitive is derived from the Latin word repetere, which means to do again or say again.
Redundant means 1.) something no longer needed, no longer useful 2.)something that may be omitted with no loss of function or meaning 3.) something superfluous 4.) in British English, redundant means laid off from a job. The word redundant comes from the Latin word redundantem, which means overflow, be in excess. Related words are redundantly and redundancy. Repetitive and redundant are not interchangeable. Repetitive refers to the same thing repeated over and over again, redundant describes something that is an excess, superfluous, no longer useful.
Examples
“Americans’ position is repetitive and our stance continues to remain firm and relevant,” government spokesman Mohammad Bagher Nobakht made the remarks during his weekly press session on Tuesday. (The Tehran Times)
Autism is a neurodevelopmental disorder characterized by social impairments, cognitive impairments, communication difficulties and repetitive behaviors. (The Daily Corinthian)
There is no music, but the game is awash with little noises, the repetitive creaking of a swinging light fixture, the sound of extra footsteps when walking, the wailing of whatever is occupying the space with you. (The Japan Times)
Southern Water recently carried out a site visit and said although the pipe was redundant, and had been for three years, it would not be removed as it would be costly to customers, cause disruption and would not significantly decrease the risk of flooding. (The Isle of Wight County Press)
“While messaging services such as WhatsApp and Telegram have introduced end-to-end encryption to protect users’ communications, vulnerabilities in the SS7 network on which they rely render these security enhancements redundant,” Positive Technologies’ Alex Matthews told International Business Times, adding that carrying out these attacks was not difficult. (The International Business Times)
The editor-in-chief of investigative news site Exaro has said the site’s management is planning to make him redundant and halve its editorial budget. (The Guardian)