Undecayed is a term we use to describe something that has not decayed yet, such as a plant, tree, or fruit. It is a term that denotes freshness, newness, and vitality. There are many synonyms for the word undecayed, like resilient, sound, intact, unspoiled, untarnished, unblemished, pristine, pure, uncorrupted, and unspoiled. Synonyms for undecayed can also include words like unchanging, unalterable, and unwavering, all of which represent the idea of something that is not subject to decay or deterioration. Using synonyms for undecayed in our writing can help us to add variety and freshness to our language and enhance clarity in our message.