SYNONYMS
dirty, filthy, grimy, muddy, mud-caked, grubby, messy, soiled, stained, smeared, smeary, scummy, slimy, sticky, sooty, dusty, unclean, foul, begrimed, bespattered, befouled, polluted, squalid, insanitary
British dialect claggy
informal cruddy, grungy, yucky, icky, gloopy, crummy
British informal manky, gungy, grotty
Northern Irish informal bogging
Australian, New Zealand informal scungy
literary besmirched
rare feculent