Read the dictionary definition of dingy. All definitions for this word.
1. causing dejection
1. a blue day
2. the dark days of the war
3. a week of rainy depressing weather
4. a disconsolate winter landscape
5. the first dismal dispiriting days of November
6. a dark gloomy day
7. grim rainy weather
2. thickly covered with ingrained dirt or soot
1. a miner's begrimed face
2. dingy linen
3. grimy hands
4. grubby little fingers
5. a grungy kitchen
3. (of color) discolored by impurities; not bright and clear
1. dirty
2. a dirty (or dingy) white
3. the muddied grey of the sea
4. muddy colors
5. dirty-green walls
6. dirty-blonde hair