Synonyms for Muddiness (same or very similar meaning)
WordNet sense 1 (the wetness of ground that is covered or soaked with water):
sloppiness, waterinessWordNet sense 2 (a mental state characterized by a lack of clear and orderly thought and behavior):
confusion, disarray, confusedness, mental confusionWordNet sense 3 (the quality of being cloudy):
cloudiness, murkinessFrom the ODE community, based on WordNetadd/edit