The opposite of "assumed command" can be interpreted in various ways based on the context. In a military scenario, the antonym of "assumed command" could be "relieved of command," meaning that the person was removed from their position of authority. Similarly, in a corporate scenario, the antonym could be "abdicated leadership," implying that the person voluntarily stepped down from their role. Another antonym could be "delegated responsibilities," which suggests that the person distributed their duties to someone else. Depending on the context, there can be many antonyms for "assumed command," each implying a different scenario of relinquishing control over a situation.