The antonyms for the word "possessing oneself of" may include relinquishing, giving up, releasing, yielding, surrendering, disavowing, rejecting, denying, forsaking, disowning and renouncing. All of these words express a lack of ownership or control over something, and are opposite to the act of fully taking control of a situation or object. It is important to be aware of these antonyms, especially when considering the consequences of giving up control. While relinquishing control can be liberating at times, it can also lead to a lack of agency or power over one's life or circumstances. Ultimately, the choice of whether to possess oneself of something or to relinquish control is a personal decision that requires careful consideration of one's values and goals.