WordGarden.ioderailment
B1Pronunciation
UK
- /dɪrˈeɪlmənt/
US
- /dɪˈreɪlmənt/
Meanings
Noun
an incident in which a train or similar rail vehicle leaves the tracks
a disruption that throws a plan, process, discussion, or effort off course
Beyond the definition
Imagine a speeding train, confidently rolling along its rails. A derailment happens when something goes wrong—a damaged track, something on the line, or simply going too fast—and the train leaves the rails, potentially causing chaos and damage. But "derailment" isn't just about trains! It can also describe anything that gets pushed off its planned course or is interrupted. A political scandal might cause the derailment of a candidate's campaign, or a personal crisis could derail your carefully made plans. Think of it as something throwing things off the tracks, literally or figuratively.
A derailment most commonly refers to the accidental departure of a train from its rails—a potentially catastrophic event involving overturned cars and damaged infrastructure. While the term brings to mind images of dramatic accidents, modern rail travel thankfully employs increasingly sophisticated safety measures to prevent derailments. Still, the image remains powerful: a symbol of loss of control and unexpected disruption. "Following the heavy rains, there was a serious derailment on the coastal line."
However, "derailment" extends far beyond the railway. It is a versatile metaphor for any situation where a process is thrown off course or disrupted from its intended path. A conversation can be derailed by an unexpected topic, a project can suffer a derailment due to unforeseen obstacles, and even your own life can experience derailments—moments when things simply don't go as planned.
In some psychology and medical writing, "derailment" can also describe speech or thinking that jumps from idea to idea with only weak connections.
For example: "The witness's testimony threatened to derail the prosecution's case," meaning it could cause the case to fail. Or, "Her illness led to a major derailment of her summer vacation plans." The key is that something was on track, moving forward purposefully, and then something happened to interrupt or halt its progress.
While often used in negative contexts—implying failure or a setback—a derailment simply describes a deviation from the expected course. It doesn't necessarily mean a complete disaster; sometimes things can be rerouted and put back on track. Regardless of the outcome, it always signifies an interruption, a disruption, or a moment where something leaves its intended path.
Examples
- 1
Train accident
A freight train derailment closed the line for most of the day.
- 2
Service delay
No one was seriously hurt in the derailment, but service was delayed for hours.
- 3
Failed merger
The scandal led to the derailment of the merger.
- Patternthe derailment of + plan/process
the sudden failure or stopping of it
- 4
Career setback
One bad quarter does not have to mean the derailment of her career.
More examplesFewer examples
- 5
Project planning
Minor derailments are common in long projects, so the team built in extra time.
See also
Forms and spellings
2 forms open this card.
Main spelling
- derailmentnoun
Forms
- derailmentspluralnoun