The antonym for the word "most another" is "least alike". Most another means similar or nearly the same as something else, while least alike means significantly different or dissimilar. When comparing two things, most another refers to the item that is most similar to the other, whereas least alike means the complete opposite. For example, two cars can look most another when they have a similar shape, color, or size. However, two cars can be least alike when they have different makes, models, and features. Understanding the difference between most another and least alike can help one express themselves more accurately and efficiently.