IPA: /aɪˈkɒnəklæst/
KK: /aɪˈkɒnəklæst/
A person who challenges or criticizes established beliefs, customs, or institutions, often in a radical way.
The artist was considered an iconoclast for his unconventional approach to traditional art forms.
Iconoclast → It is formed from "icon" (from Greek "eikon", meaning image or likeness) and "klastes" (from Greek "klasthai", meaning to break). The word describes someone who breaks or rejects images, particularly in a religious context.
Think of someone who 'breaks' ('klasthai') 'images' ('eikon') — that's why an iconoclast is someone who challenges or rejects established beliefs.