Antonyms for the phrase "holds in custody" can vary depending on the context. However, some possible options include "releases," "frees," "discharges," "disentangles," and "extricates." These words pertain to the act of setting someone or something free from captivity, restriction, or confinement. Other words that can be antonyms for "holds in custody" may relate to a more indirect form of captivity, such as "protects," "cares for," "looks after," or "supports." These antonyms may suggest a more positive connotation and highlight one's ability to take action positively without resorting to imprisonment.