When looking for antonyms for the phrase "most opposite," several words come to mind. The first could be "similar," indicating that two things have a close resemblance or share commonalities. Another option could be "deviating," suggesting that two things differ significantly from one another but may not necessarily be polar opposites. "Alike" also comes to mind, meaning two things have similarities or resemblances, but not to the opposite extremes. "Comparable" could be another choice, meaning two things can be measured or judged against each other in a similar way. Ultimately, the best antonym for "most opposite" may depend on the context in which it's used, but these are all possible options to consider.