Headless means without a head, whether literally or figuratively.

In its most direct sense, headless describes something that has lost its head or never had one. A headless statue in a museum might be missing its head due to damage over centuries. The famous Headless Horseman from Washington Irving's story rides through Sleepy Hollow carrying a jack-o-lantern where his head should be.

But headless also describes organizations or groups operating without clear leadership. When a company's CEO suddenly resigns and no replacement is named, people might say the company is running headless, stumbling around without direction like that legendary horseman. A school project team working without anyone in charge might feel headless, with everyone talking but nobody coordinating the work.

In technology, headless has a special meaning: software or hardware that works without a user interface. A headless computer server, for example, runs programs and stores data but has no monitor or keyboard attached. Programmers interact with it remotely, through commands rather than clicking and typing directly.

The image of being headless captures that sense of confusion or incompleteness, whether it's a Halloween costume, a leaderless group, or a computer doing its work invisibly behind the scenes.