i ‧ con ‧ o ‧ clas ‧ tic /aɪˌkɒnəˈklæstɪk◂ $ -ˌkɑːn-/ BrE AmE adjective formal
iconoclastic ideas, opinions, writings etc attack established beliefs and customs:
Wolfe’s theories were revolutionary and iconoclastic.
—iconoclasm /aɪˈkɒnəklæz ə m $ -ˈkɑː-/ noun [uncountable]