Grim·y a. [Compar. Grimier superl. Grimiest.] Full of grime; begrimed; dirty; foul.
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  grimy
       adj : thickly covered with ingrained dirt or soot; "a miner's
             begrimed face"; "dingy linen"; "grimy hands"; "grubby
             little fingers"; "a grungy kitchen" [syn: begrimed, dingy,
              grubby, grungy, raunchy]