How to sign: (of color) discolored by impurities; not bright and clear "dirty" is often used in combination; "a dirty (or dingy) white"; "the muddied gray of the sea"; "muddy colors"; "dirty-green walls"; "dirty-blonde hair";
muddied in ASLWatch how to sign muddied in American Sign Language
How to sign: soiled or likely to soil with dirt or grime "dirty unswept sidewalks"; "a child in dirty overalls"; "dirty slums"; "piles of dirty dishes"; "put his dirty feet on the clean sheet"; "wore an unclean shirt"; "mining is a dirty job"; "Cinderella did the dir;
unclean in ASLWatch how to sign unclean in American Sign Language
How to sign: violating accepted standards or rules "a dirty fighter"; "used foul means to gain power"; "a nasty unsporting serve"; "fined for unsportsmanlike behavior";
unsporting in ASLWatch how to sign unsporting in American Sign Language