1. in a loud, bold, or brash manner; with aggressive confidence or rudeness
Usage: informal
2. in a manner resembling or characteristic of brass; with a shiny, metallic quality
Usage: less common

Examples

• She brassily announced her arrival at the party without waiting to be introduced.
• The band played brassily, with the trumpets dominating the entire performance.
• He brassily ignored the rules and did exactly what he wanted.
• The sun reflected brassily off the polished metal surface.
• She spoke brassily about her accomplishments, showing little humility.