The phrase "pines away" refers to a state of gradual decline, typically out of love, longing, or sorrow. In this context, its antonyms could be seen as words that represent positive emotions, feelings of rejuvenation, and acts of self-care. Words like "resiliency," "optimism," "contentment," "rejuvenation," and "vitality," could be antonyms for "pines away." These words signify a state of growth and stability in the face of adversity. Resilience, in particular, reflects a person's ability to cope with stress, trauma, and heartbreak. Therefore, the antonyms for "pines away" reflect a positive outlook on life, a mindset of hope, and the will to heal and recover from difficult situations.