"grimy" in the adjective sense
1. begrimed, dingy, grimy, grubby, grungy, raunchy
thickly covered with ingrained dirt or soot
"a miner's begrimed face"
"dingy linen"
"grimy hands"
"grubby little fingers"
"a grungy kitchen"
Source: WordNet® (An amazing lexical database of English)
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