What does malfunctioned mean?
“Malfunctioned” is the past-tense form of “malfunction,” meaning that something failed to work correctly or as intended. It is especially common in technical and journalistic contexts involving machinery, electronic equipment, vehicles, computers, or larger systems. The word suggests a departure from normal or expected performance and is therefore often more specific than the general phrase “broke down.” For example, a vehicle that will not start has malfunctioned, as may a satellite whose communications equipment has failed. Although the term is usually applied to objects and systems, it can also describe a person functioning improperly, though such usage may sound clinical or figurative. “Malfunctioned” is a formal, unambiguous choice when describing an operational failure and is especially useful in reports, technical writing, and discussions of technology.
verbTo fail to work or operate correctly. It can refer to a person, machine, system, or process functioning improperly.
- To fail to work correctly or as intended.
"The backup generator malfunctioned during the power outage."
"Several satellite systems malfunctioned shortly after launch."
"The laboratory admitted that one of its monitoring devices had malfunctioned."
When something malfunctions, the word captures not just a breakdown but a failure to perform as intended.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does malfunctioned come from?
“Malfunctioned” is the past tense of “malfunction,” formed in the early 19th century from the prefix “mal-” meaning “bad” or “abnormal” and “function.” “Function” derives through French from Latin “functio,” a term associated with performance or execution. The same Latin source underlies related English words such as “functional,” “functionality,” and “dysfunction,” although “malfunction” was formed with the explicitly negative prefix “mal-”.
Related word forms
How malfunctioned is actually used
This is formal and technical in tone, although it is now common in general reporting about machines, technology, and complex systems. It is usually used for a failure in operation, not simply an accidental mistake.
Easily confused with malfunctioned
“Malfunction” is the noun for a failure to operate correctly, while “malfunctioned” is the past-tense verb describing that failure.