The words that can be used as antonyms for "dying away" are thriving, flourishing, blooming, and thriving. These words imply that something is growing and becoming stronger, rather than fading away or becoming weaker. We can use these antonyms to describe plants, animals, and even people. For example, a garden can be thriving with beautiful flowers blooming everywhere, while a business can be flourishing with its profits increasing every year. These words also imply a sense of positivity and success, which can be motivating and inspiring. Therefore, we should strive to use these antonyms to describe our own growth and success in life.