head ‧ less /ˈhedləs/ BrE AmE adjective
[ Word Family: noun : ↑ head , ↑ heading , ↑ overhead , ↑ header , ↑ headship ; adjective : ↑ overhead , ↑ heady , ↑ headless , ↑ headed ; verb : ↑ head , ↑ behead ; adverb : ↑ overhead ]
1 . without a head:
a headless corpse
2 . run around like a headless chicken informal to be going from one place to another in a way that is not organized at all