oppugner

“But … contraception wouldn’t exist without an evidence base,” my oppugner said mildly, and I replied, “Screw you! Screw the patriarchy.”

Now the burthen of the proof lies with the oppugner, not with the supporters of the common belief.

His hallucinations on the subject of witchcraft, from which none of the English writers of the Platonic school were exempt, are the more extraordinary, as a sister error, judicial astrology, met in More with its most able oppugner.

Dennis, the fiercest oppugner of puns in ancient or modern times, professes himself highly tickled with the "a stick" chiming to "ecclesiastic."

Now the burden of the proof lies with the oppugner, not with the supporters of the common belief.