The antonyms for the phrase "appearing like" could be "authentic," "genuine," or "real." These words suggest that the object or person in question is not simply "appearing" to be a certain way, but is actually that way. Another possible antonym could be "unrecognizable," implying that the thing in question doesn't look like anything in particular. In addition, "dissimilar," "incongruous," or "incompatible" could all be antonyms for "appearing like," indicating that the thing in question isn't just different from expectations, but is actively contradicting them. All of these antonyms suggest that the concept of "appearing like" is a tricky one, requiring careful consideration and judgment to accurately assess.