grime covered

• filthyThoroughly unclean
• grimyCoated in stubborn dirt
• sootyCovered in black residue
• dustyCoated with fine particles
• smudgedBlurred by contact

streaked · blackened · dingy · murky · unwashed · tarnished · caked · encrusted · smeared · greasy · oily · coal · soot · ash · scrubbing · rag · grit · factory