Un-revealed refers to something that has not been disclosed, made known, or revealed. An antonym for un-revealed is "revealed." This term indicates that something has been made known or disclosed. Other antonyms for un-revealed may include "exposed," "discovered," or "uncovered." These words all convey a sense of something becoming known or coming to light. Conversely, words that could be considered synonyms for un-revealed include "hidden," "concealed," and "secret," all of which correspond with a sense of something being kept from view or knowledge. When using antonyms, it is essential to choose the term that's most accurately conveys the intended meaning.