lurch

To lurch means to move suddenly and violently, often in an unsteady or jerky way. It can describe the physical action of stumbling or swaying, like when "the train lurched forward with a jolt." This is most commonly used to depict something large and heavy moving unexpectedly—think of a ship on stormy seas, a bus hitting a bump, or even someone tripping and regaining their balance with an awkward stumble.

However, lurch isn't limited to physical movement. It can also describe a sudden shift in circumstances or emotions. A business might "lurch from profit to loss," meaning it unexpectedly experiences financial difficulties. Or you might say, "He lurched into depression," indicating a rapid and unwelcome descent into sadness.

The word carries a sense of being thrown off course, even if only for a moment. A lurch is not graceful; it is abrupt and often unsettling. So, whether you are describing the movement of a vehicle, a person's awkward step, a turn in someone's fortunes, or a sudden emotional drop, lurch suggests a sharp disruption to stability.