noun which may take the genitive case particle 'no'
headless; decapitated
Describes something without a head, often in a literal or figurative sense. Commonly used in set phrases like 首なし鶏 (headless chicken) or in horror contexts.
首なしの死体が発見された。
A headless body was found.
彼は首なし鶏のように走り回った。
He ran around like a headless chicken.