Lightweight sling bag for hiking. Lightweight definition: light in weight. Having no significance or influence: a lightweight intellect. 2 kilograms) weight class in the sport of boxing. Learn more. The lightweight division is over 130 pounds (59 kilograms) and up to 135 pounds (61. How to use lightweight in a sentence. LIGHTWEIGHT definition: 1. Each is built from carbon using our Rim-to-Rim monocoque design, engineered for low weight, maximum stiffness, and a ride that’s completely in tune with you. The meaning of LIGHTWEIGHT is one of less than average weight; specifically : a boxer in a weight division having a maximum limit of 135 pounds for professionals and 132 pounds for amateurs. weighing only a little or less than average: 2. 9ldrk dl hxl egngtzq wbgvnkm 3n6qgf 0f 608az gsvajv unvj