Collins COBUILD Advanced Learner's English Dictionary - iconoclastic

If you describe someone or their words or ideas as iconoclastic, you mean that they contradict established beliefs. (FORMAL) Is it utopian to hope that such iconoclastic ideas will gain ground?... ADJ ICONOGRAPHY The iconography of a group of people consists of the symbols, pictures, and objects which represent their ideas and way of life. ...the iconography of revolutionary posters. ...religious iconography. N-UNCOUNT