feath·er·weight / ˈfe[voicedth]ərˌwāt/ • n. a weight in boxing and other sports intermediate between bantamweight and lightweight. It ranges from 118 to 126 pounds (54 to 57 kg). ∎  a boxer or other competitor of this weight. ∎  a very light person or thing. ∎  a person or thing not worth serious consideration: he is an intellectual featherweight.

featherweight a weight in boxing and other sports intermediate between bantamweight and lightweight. In the amateur boxing scale it ranges from 54 to 57 kg.