The antonyms for the phrase "taken leave" can vary depending on the context. If the phrase refers to taking a break or vacation from work, then the antonyms could include "working," "present," or "on duty." Alternatively, if the phrase refers to departing or saying goodbye to someone, the antonyms could include "arriving," "greeting," or "meeting up." In either case, the opposite of "taken leave" implies an active or engaged status, rather than one of absence or departure. Regardless of the context, there are numerous antonyms to the phrase "taken leave" that can help clarify the speaker's intended meaning.