For example the sun is real but Jimmy Bob tries to debunk it
What would the word or term for that be
You must log in or # to comment.
If they successfully debunked it you could say they refuted it.
People sometimes use the same word to mean simply arguing against something (whether successfully or not) but I think the correct word in that case would be repudiate.
Also, to be picky, if something is a fact, it can’t really be debunked. If it is genuinely debunked then it was never really a fact, even if people previously believed that it was.
Contrarian?
Skeptic?
If they are failing to debunk a known fact, perhaps a conspiracy theorist?
If they are going against the grain, the devil’s advocate?