他试图说服那些怀疑者接受他的观点，但未能成功。

He tried to convince the ___disbelievers to accept his viewpoint, but failed.

即使有视频作为证据，一些怀疑者仍然不相信这个超自然现象。

Even with video proof, some ___disbelievers still refused to accept the supernatural phenomenon.