lightweight
Pronunciation:
noun
Definitions
A particular weight class, or member of such, as prescribed by the rules, between that of the heavier welterweight and the lighter featherweight. See Wikipedia for the specifics of each sport.
A particular weight category as prescribed by the rules, separate from an open or heavyweight class.
A competitive weight division as prescribed by the rules, between the heavier middleweight and the lighter featherweight.
One of little consequence or ability.
adjective
Definitions
Lacking in earnestness, ability, or profundity
Having less than average weight
Lacking in strength
Having a small footprint or performance impact