Antonyms for the word "most validated" can include "unproven," "invalid," "dubious," "uncorroborated," "unsupported," or "questionable." These words suggest that something has not been proven or verified and, therefore, lacks authority or credibility. It is important to note that the opposite of "most validated" does not necessarily mean falsehood, but rather a lack of evidence or support for a claim or belief. When evaluating information, it is essential to consider the sources of the information and the level of validation behind it to ensure that it is accurate and reliable.