Unrefuted means that something has not been proven false or denied. Antonyms for this word could include refuted, invalidated, disproven, and opposed. When a claim has been refuted, it has been proven incorrect or shown to be false. An invalidated claim is one that has been discredited or shown to be baseless. Similarly, a disproven claim has been shown to be false or incorrect. Opposed also serves as an antonym for unrefuted, indicating that someone has expressed disagreement or opposition towards a claim or statement. These words are useful in a variety of contexts, from scientific research to discussions of current events and politics.