A featherweight is a professional boxer who weighs between 53.5 and 57 kilograms, which is one of the lowest weight ranges. a boxer who weighs less than 57.15 kilograms, and who is heavier than a bantamweight but lighter than a lightweight
{s} light like a feather; belonging to the featherweight class (Boxing); ineffective
a professional boxer who weighs between 123 and 126 pounds weighs 126-139 pounds an amateur boxer who weighs no more than 126 pounds of a weight class of 123-126 pounds for prizefighters; "the featherweight class