The phrase "gives new life to" is typically associated with something that revitalizes, rejuvenates, or breathes fresh energy into something else. The antonyms or opposites of this phrase may include words like dulls, drains, depletes, or weakens. These words signify a reduction in energy and vitality, and they can be used to describe something that saps or erodes the life out of something else. Other opposites for this phrase could include extinguishes, crushes, or stifles, all of which suggest a complete loss of life or energy. Overall, the antonyms for "gives new life to" describe processes that have a negative impact on an object, idea, or experience.