Caded is a rare word and not very commonly used in the English language. It means to be a decayed or rotten. Caded is most commonly used in poetry or literature. There are several synonyms that can be used in place of caded. These include decayed, decomposed, putrid, fetid, rancid, and spoiled. These words can be used to describe organic matter that has undergone decomposition, or something that has gone bad/gone off. Using synonyms can help to provide variety in writing and avoid repetition while conveying the same idea.