The term "un-designated" typically refers to a lack of specific allocation or assignment, often implying a lack of purpose or focus. Antonyms for this word, on the other hand, would emphasize the opposite qualities of clear definition, intentional selection, or dedicated purpose. Some possible antonyms might include designated, appointed, specified, earmarked, selected, directed, focused, or purposeful. These terms suggest a deliberate or targeted approach, indicating a specific plan, goal, or objective. Whether used in business, education, or personal contexts, antonyms for "un-designated" can help to underscore the importance of intentionality and focus in achieving success.