The term "recherche" often refers to something that is rare, exotic, or refined. To express the opposite meaning, the following antonyms could be used - common, ordinary, commonplace, mundane, and everyday. These words denote things that are not unique, special or exclusive. An item, idea or phenomenon that is "common" or "mundane" would not evoke admiration or interest from most people. So, if you want to describe something that is not "more recherche," you could use these antonyms to convey a sense of ordinariness or regularity. However, they may not always work as perfect substitute antonyms as they do not embody the same level of sophistication or elegance as "recherche.