iconoclasticEnglishOxford New American Dictionaryiconoclastic /īˌkänəˈklastik, aɪˌkɑnəˈklæstɪk / ▸ adjective characterized by attack on cherished beliefs or institutions: a fresh, even an iconoclastic, influence could work wonders. – DERIVATIVES iconoclastically /īˌkänəˈklastik(ə)lē/ adverb