Antonyms for the phrase "let go of someone/something" include "hold on to," "cling to," "keep," "possess," "retain," and "grasp." These words imply a sense of ownership, control, or attachment, and suggest that the person or thing in question should not be released or surrendered. Opposing the idea of "letting go," these antonyms suggest a reluctance to give up, a fear of loss, or a desire to maintain the status quo. While holding on to someone or something can provide a sense of security or comfort, it can also lead to stagnation, disempowerment, and ultimately, frustration. Knowing when to let go can be a difficult but necessary step towards growth, liberation, and transformation.