1. most dirty, grimy, or covered with dirt
Usage: superlative form of grubby

Examples

• His hands were the grubbiest after working in the garden all day.
• She found the grubbiest shirt at the bottom of the laundry basket.
• The grubbiest child at the playground needed a bath immediately.
• This is the grubbiest kitchen I’ve ever seen.
• After camping for a week, we looked our grubbiest.
• The grubbiest windows in the building hadn’t been cleaned in years.