The word "most debunked" implies that something has been thoroughly discredited. The antonyms for this word would be "credible," "valid," or "proven." These words suggest that there is evidence or support to back up a claim, rather than a lack of evidence to refute it. Other antonyms for "most debunked" could include "accepted," "reliable," "verified," or "substantiated." All of these words convey a sense of trustworthiness and soundness, indicating that the information has been thoroughly vetted and found to be accurate.