The word lattermost is defined as "the farthest or most remote in a series or sequence." Some synonyms for the word lattermost include "ultimate," "final," "terminal," "endmost," and "last." Each of these words conveys the sense of something that is the furthest extent or conclusion of a sequence, whether it be a physical location or a conceptual idea. Other possible synonyms for lattermost might include "closing," "endangered," "enduring," "eventual," or "extreme." Whatever word is chosen, it should evoke a sense of reaching the very end or limit of something, signaling a conclusion or resolution to a sequence of events or ideas.