iconoclasticEnglishOxford Dictionary of Englishiconoclastic /ʌɪˌkɒnəˈklastɪk , ˌʌɪkɒnəˈklastɪk / ▸ adjective criticizing or attacking cherished beliefs or institutions: an iconoclastic filmmaker who has pushed the boundaries with every film he's made. – DERIVATIVES iconoclastically /ˌʌɪˈklastɪk(ə)li/ adverb