The word "un-refuted" implies that something has not been disproven or challenged. Its antonyms, therefore, would be words that indicate the opposite: something that has been disproven or challenged. Some antonyms for "un-refuted" include "disproved," "challenged," "denied," "opposed," "contested," "refuted," "rejected," and "controverted." These words indicate that the validity of something has been brought into question or that an argument has been successfully challenged. By understanding antonyms for "un-refuted," we can better understand the importance of presenting clear and compelling evidence to support our claims and arguments.