Grungy is an adjective that describes something that is dirty, unkempt, or shabby. There are plenty of synonyms for this word, which can be used to describe things that have been left neglected or are simply not cared for. The synonyms for grungy include filthy, grimy, squalid, messy, and dingy. One can also use the words run-down, seedy, dilapidated, or decrepit to convey the same meaning. These words are perfect for describing old buildings, rusty cars, and other things that have been left to rot. Whether you're talking about a disused warehouse or a forgotten alleyway, these synonyms for grungy will help you paint a vivid picture of neglect and decay.