The phrase "chilling the bone" is often associated with cold weather and freezing temperatures. However, when we speak of antonyms for this phrase, we can think of various words related to warmth and comfort. "Warming the soul" could be a suitable antonym, implying a sense of nourishment and comfort. Another antonym could be "heating up," suggesting an increase in energy or excitement. "Soothing the body" might also work, invoking a sense of relaxation and ease. Ultimately, the choice of antonym would depend on the context and intended meaning, but any of these options could provide a helpful contrast to the phrase "chilling the bone.