grimy

As a noun soot

is fine black or dull brown particles of amorphous carbon and tar, produced by the incomplete combustion of coal, oil etc.

As a verb soot

is to cover or dress with soot.

As an adjective grimy is

stained, or covered with grime.

As adjectives the difference between grimy and smudged

is that grimy is stained, or covered with grime while smudged is blurred as by being rubbed.

As a verb smudged is

(smudge).

As adjectives the difference between lousy and grimy

is that lousy is remarkably bad; of poor quality, dirty, or underhanded; mean, contemptible while grimy is stained, or covered with grime.

Grimy is a related term of messy.

As an adjective grimy

is stained, or covered with grime.

As a noun messy is

.

As a proper noun dusty

is , diminutive of dustin or dusty can be (british) a nickname for someone with the surname miller.

As an adjective grimy is

stained, or covered with grime.

Soiled is a related term of grimy.

As adjectives the difference between soiled and grimy

is that soiled is dirty while grimy is stained, or covered with grime.

As a verb soiled

is (soil).

Muddy is a related term of grimy.

As adjectives the difference between muddy and grimy

is that muddy is covered with or full of mud or wet soil while grimy is stained, or covered with grime.

As a verb muddy

is to get mud on (something).

Grimy is a related term of squalid.

As adjectives the difference between grimy and squalid

is that grimy is stained, or covered with grime while squalid is extremely dirty and unpleasant.

As a noun squalid is

(zoology) any member of the squalidae.

Grimy is a related term of polluted.

As adjectives the difference between grimy and polluted

is that grimy is stained, or covered with grime while polluted is defiled; made unclean or impure; debauched.

As a verb polluted is

simple past and past participle of pollute.