- lightweight⇄adj. 1. light in weight.
Ex. The hat ... is made of lightweight leather (London Daily Chronicle).
2. (Figurative.) unimportant; insignificant.
Ex. They were written [as] lightweight affairs with humorous entertainment as their object ( - lightweight⇄lightweight, noun, adjective.
- lightweight⇄noun 1. a person, animal, or thing of less than average weight.
2. a boxer or wrestler who weighs 126 to 135 pounds.
3. (Informal, Figurative.) a person who has little intelligence, importance, or influence.