It's hard to come up with antonyms for a phrase as unique as "egg beer," which typically refers to a traditional English drink made with raw eggs, sugar, and beer. However, if we were to break it down into its individual components, we could potentially come up with some opposites. For example, an antonym for eggs could be something like "ham" or "bacon," while an antonym for beer might be "water" or "juice." Alternatively, we could think about the qualities that define egg beer, such as sweetness, creaminess, and frothiness, and come up with antonyms that are bitter, thin, and flat. Regardless of how we approach it, it's clear that there are many directions we could go in when trying to find antonyms for this unique phrase.