dingier

1. thickly covered with ingrained dirt or sootExamples: "a miner's begrimed face"; "dingy linen"; "grimy hands"Synonyms: begrimed, dingy, grimy, grubby, grungy, raunchy

2. (of color) discolored by impurities; not bright and clear; is often used in combinationExamples: "dirty"; "a dirty (or dingy) white"; "the muddied grey of the sea"Synonyms: dingy, dirty, muddied, muddy

3. causing dejectionExamples: "a blue day"; "the dark days of the war"; "a week of rainy depressing weather"Synonyms: blue, dark, dingy, disconsolate, dismal, drab, drear, dreary