The phrase "keeps close" refers to the act of guarding, holding, or protecting something or someone very carefully. Antonyms for this phrase could include "let go," "release," "ignore," or "abandon." These words suggest a lack of concern or care for the well-being of the thing or person in question. Other antonyms could include "reveal," "expose," or "disregard," which suggest a willingness to share information or to leave something vulnerable to outside forces. When looking for antonyms for "keeps close," it is important to consider the context in which this phrase is being used, as well as the intended message or tone of the speaker.