When we hear the word "un designated," we automatically think of something that is not indicated or specified. However, there are several antonyms that can replace this term, giving us a more precise meaning according to the context. The antonyms of "un designated" include specified, appointed, authorized, chosen, selected, named, and confirmed. These words imply that something has been attributed or assigned to a particular entity, person or thing, making it more defined and recognizable. By using these antonyms, we can communicate our ideas more accurately, avoiding confusion or misinterpretation of what we mean.