Was Isaac Newton a Heretic?

(Related to https://christianity.stackexchange.com/q/78085/48290) Most know Sir Isaac Newton as the person who discovered gravity when he observed the fall of an apple or his discovery of light being a particle, but few are aware of his religious views. For one, he held much disdain for Catholics and the Anglican church. He was an Antitrinitarian monotheist, declaring the trinity idolatry. Some would call him a heretic. Many did, but he has never been ostracized. He was not public about his views and his study of alchemy. Today, is he still branded as a heretic?