1. a dark gray metallic alloy traditionally used for making cannons and other weapons
2. a dark bluish-gray color resembling the metal

1. having a dark bluish-gray color

Examples

• The antique cannon was made of traditional gunmetal.
• She chose gunmetal gray paint for the kitchen cabinets.
• His gunmetal watch matched his formal suit perfectly.
• The storm clouds had a gunmetal appearance.
• The car's gunmetal finish gleamed in the sunlight.
• Gunmetal was once the preferred material for naval artillery.