a. 1. Exchanged; put in the place of another. [ 1913 Webster ]
2. (Chem.) Containing substitutions or replacements; having been subjected to the process of substitution, or having some of its parts replaced; as, alcohol is a substituted water; methyl amine is a substituted ammonia. [ 1913 Webster ]
Substituted executor (Law), an executor appointed to act in place of one removed or resigned. [ 1913 Webster ]