Which term is synonymous with ‘Overthrowing traditional beliefs or practices’?

The term that means 'overthrowing traditional beliefs or practices' is iconoclast. An iconoclast is someone who challenges or rejects established customs, beliefs, or institutions. This term carries a connotation of revolutionary thought, often associated with breaking away from accepted norms. By definition, an iconoclast actively seeks to disrupt the status quo and encourage new perspectives or practices that challenge traditional views.

On the other hand, the terms radical, orthodox, and conformist represent different concepts. Radical often implies a significant change or departure from the norm, but it doesn't necessarily focus on the rejection of tradition as an iconoclast does. Orthodox refers to adhering to traditional or established beliefs, making it the opposite of what an iconoclast represents. Conformist describes someone who adheres to accepted norms and practices, further contrasting with the idea of overturning established beliefs. Thus, iconoclast is the most fitting term for someone who seeks to dismantle traditional ideas or practices.