adjective
- containing less alcohol than the standard or required amount
Usage: technical; used of alcoholic beverages
Examples
- The whiskey was rejected because it was underproof.
- Underproof spirits cannot be sold as premium products.
- The distillery had to redistill the underproof batch.
- Quality control detected that the rum was underproof.
- Underproof alcohol has a lower concentration than expected.
- The regulations specify that underproof beverages must be labeled accordingly.