iconoclast

noun3

1. •
   (historical) One who destroys religious images or icons, especially an opponent of the Orthodox Church in the 8th and 9th centuries, or a Puritan during the European Reformation.

   • In the days of the early Christian church, people who opposed the veneration (reverence) of images were called iconoclasts. — 2004
2. •
   One who opposes orthodoxy and religion; one who adheres to the doctrine of iconoclasm.
3. •
   One who attacks cherished beliefs; a maverick.

   • Relishing the role of iconoclast, he confounded the scientific establishment by dismissing the consensus about the perils of man-made climate change as “tribal group-thinking.” — 2020