The phrase "most extremity" refers to the highest or the furthest point of a particular situation, object or idea. The antonyms of this phrase that express the opposite meaning include "least extremity," "average," "middle," "median," and "typical." The term "least extremity" refers to the the lowest or the closest point of a particular situation, object or idea. Conversely, the words "average," "middle," "median," and "typical" all signify the idea of normalcy, balance, and moderation- the exact opposite of extremity. In summary, the antonyms for "most extremity" all convey the idea of the least amount of intensity, distance or differentiation.