The phrase "gives up the ghost" is an idiom that means to die or stop working. Some common antonyms for this phrase include "revive," "reanimate," "resurrect," "persevere," and "persist." If a person or thing finally gives up the ghost, the opposite would be to revive or reanimate, implying that the person or thing is returned to life or is once again operational. Another opposite of this phrase is to persevere or persist, suggesting that the person or thing continues to endure, survive, or thrive even amid challenging circumstances. Overall, the antonyms for "gives up the ghost" point to the possibility of renewal, resilience, and endurance in the face of adversity.