The antonyms for the word "gives over" are "holds back," "withholds," "keeps," and "retains." When someone "gives over," they surrender or relinquish control of a situation or task. On the contrary, holding back implies retaining authority or control over a specific matter. Withholding implies keeping something back intentionally, whereas keeping refers to retaining something without relinquishing the authority over it. Retaining means keeping in possession or control without giving it up or letting it go. These antonyms illustrate that giving over is essentially the opposite of holding back or retaining control over something, depending on the context.