1. a boxer in the lightest weight class, typically weighing 118-126 pounds
Usage: boxing
2. a person or thing that is very light in weight

1. extremely light in weight
2. lacking substance, importance, or influence
Usage: informal

Examples

• The featherweight champion defended his title successfully.
• She was a featherweight at only 95 pounds.
• The featherweight fabric made the dress perfect for summer.
• His featherweight arguments failed to convince anyone.
• The boxer moved up from featherweight to lightweight division.
• The laptop's featherweight design made it easy to carry.
• Critics dismissed the book as featherweight entertainment.