Antonyms for Clean (opposite meaning)
WordNet sense 1 (make soiled, filthy, or dirty):
dirtyWordNet sense 2 (ritually unclean or impure):
uncleanWordNet sense 3 (soiled or likely to soil with dirt or grime):
soiledWordNet sense 4 (in an unfair manner):
unfairlyFrom the ODE community, based on WordNetadd/edit