Unfadingly is a unique and expressive word that can be used to describe something that lasts indefinitely or does not fade away with time. However, sometimes we need alternative words to describe the same concept. Some synonyms that can be used instead of unfadingly are eternally, forever, perpetually, incessantly, and ceaselessly. Each of these words conveys the idea of something that is unending and lasts forever. They are perfect to use in writing, poetry, or any other creative outlets where you want to express the idea of something that will never fade away or end.