headless
Headless (adj) means having no head, literally — a body without its head. Example: “The legend tells of a headless horseman who roams the woods at night.”
How to use headless
Learner’s notesIn plain EnglishWithout a head — literally missing one, without a leader, or (for computers) without a display/interface.
Fill the gap
Can you complete this real example?
The legend tells of a _____ horseman who roams the woods at night.
Etymology
From Old English hēafodlēas, a straightforward joining of head and the negative suffix -less; the tech sense is a modern 20th/21st-century extension.