dingy - adjective

• thickly covered with ingrained dirt or soot
• (of color) discolored by impurities; not bright and clear
• causing dejection

dingy - thesaurus

begrimed   blue   dark   dirty   disconsolate   dismal   drab   drear   dreary   gloomy   grim   grimy   grubby   grungy   muddied   muddy   raunchy   sorry