1. most dull, colorless, or lacking in brightness or interest (superlative form of drab)
Usage: superlative form

Examples

• The drabbest building on the street was the old warehouse.
• She wore the drabbest outfit to avoid drawing attention.
• This is the drabbest weather we’ve had all month.
• The drabbest part of the presentation was the financial data.
• Even the drabbest colors looked cheerful in the bright sunlight.
• His drabbest suit was still more formal than my best clothes.