What does misfiring mean?
Misfiring means failing to operate as intended, especially by failing to fire properly. The word is most commonly used for an engine or cylinder that repeatedly fails to ignite or discharge, but it can also describe a project, campaign, or other process that is going badly. In its literal sense, “misfiring” suggests a machine that is trying to work but cannot complete its expected action. Figuratively, the word conveys repeated or persistent failure rather than a single ordinary setback. It is useful in both technical and general contexts because it clearly identifies a problem occurring during attempted operation rather than a system that has simply stopped or was never designed to work.
To fail to fire or discharge properly, especially as an engine or other mechanism.
"One of the cylinders began misfiring during the climb."
Often used in technical descriptions of engines, cylinders, firearms, and similar mechanisms.
To proceed badly or fail to produce the intended result.
"The advertising campaign was misfiring, so the team changed its approach."
Figurative use is common in general and informal contexts.
A misfiring engine can turn an ordinary journey into a negotiation between you and the roadside.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of misfiring
Misfiring is formed from the prefix “mis-,” meaning wrongly or incorrectly, and “fire,” with reference to a mechanism or chamber failing to ignite or discharge properly. The verb “misfire” developed in the context of firearms and engines before gaining broader figurative meanings. Its structure reflects a common English pattern in which “mis-” forms a new word indicating faulty or unsuccessful action.
Related word forms
How misfiring is actually used
Literally, the term is used for engines, cylinders, firearms, and other mechanisms that fail to fire or discharge correctly. Figuratively, it describes a plan, campaign, process, or performance that is going wrong; this use is generally informal but widely understood.
Easily confused with misfiring
A misfire is the failure or faulty discharge itself, while misfiring describes an engine or other mechanism that repeatedly or currently fails to fire properly.