oblocutor

plural oblocutors

1. archaicA gainsayer; a critic.

   […]the censure of the judges, the railing language of the oblocutor[…]

   1838 [1563], John Foxe, The Acts and Monuments of John Foxe, page 511

   1 more example

   In this, Labour was addressing the problems of twenty-first-century Britain, something that was already clear in Corbyn’s 2015 leadership bid, but was largely ignored by his oblocutors.

   2017 [2016 July], Richard Seymour, Corbyn: The Strange Rebirth of Radical Politics, page xlii