We don't have synonyms for Zwinglian yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are zwingli and zwinglians.
(adj) :
relating or referring to Zwingli, his beliefs, or his followers and adherents
(n) :
follower of Huldrych Zwingli (1484-1531), Swiss Protestant reformer, who disagreed with Luther in rejecting the doctrine of the presence of Christ in the Eucharist
(adj) :
relating or referring to Zwingli, his beliefs, or his followers and adherents
(n) :
follower of Huldrych Zwingli (1484-1531), Swiss Protestant reformer, who disagreed with Luther in rejecting the doctrine of the presence of Christ in the Eucharist