The term "not aged" means something that is fresh and new, or has not been subjected to the effects of aging. Antonyms for this term include "aged," "old," "mature," "senior," "veteran," and "seasoned." These words connote a certain level of experience, long-lasting existence or a well-developed state. While "not aged" may invoke a sense of youth, energy, and freshness, words that are antonyms for it, present an equally important aspect of life that is important and valuable, due to their years of experience, wisdom or knowledge gained over time. Ultimately, these antonyms are reminders that everything in life has value, no matter how old or young it may be.