Synonyms of 'iconoclastic'
If you describe someone as impious, you mean that they show a lack of respect for religious things.
If you describe someone as irreverent, you mean that they do not show respect for people or things that are generally respected.
She's irreverent, fun and hugely popular.
Thesaurus for iconoclastic from the Collins English Thesaurus
If you describe someone or their words or ideas as iconoclastic , you mean that they contradict established beliefs .