Antonyms for the term "take captive" could include "release," "liberate," and "free." When someone takes another person captive, they are essentially holding them against their will and depriving them of their freedom. The opposite of taking someone captive would be to set them free or release them from captivity. This could be achieved through negotiation or by force, depending on the situation. It is important to note that the act of taking someone captive is often associated with violence, coercion, and oppression, and therefore, the opposite actions of releasing, liberating, and freeing are generally considered positive and life-affirming.