malfunctioning

Definitions

Failing to function or operate in the normal or expected manner.

Experiencing a breakdown or technical error in performance.

Examples

The malfunctioning elevator was stuck between the third and fourth floors for over an hour.

We had to replace the malfunctioning sensor before the entire security system could be reset.

Synonyms

broken defective faulty inoperative out of order glitchy failing

Antonyms

functioning working operational perfect intact sound effective