The phrase "more down at heel" refers to something that is more worn out, shabby, or decrepit. It is an antonym to words like pristine, elegant, refined, or opulent. When something is described as more down at heel, it implies that it is in a worse condition than something else. Antonyms to this phrase may include sophisticated, prosperous, polished, luxurious, or grandiose. For instance, one could say that a lavish estate is an antonym to a more down at heel property. Similarly, a new, flashy sports car might be an antonym to an old, rusty car that is more down at heel.