Antonym for purist? [closed]

Does a word exist that could accurately be used as an antonym for 'purist', which is a person who insists on absolute adherence to traditional rules or structures, especially in language or style.

I got stuck mid-sentence looking for an appropriate fill, and ended up with an ungratifying conclusion to an argument because nothing came to mind.

Edit: Not sure if context matters much here, but by using purist, I'm specifically referring to someone who's a stickler for guidelines and rules, where sometimes discretion may be warranted.

maverick (n.)

A person who refuses to follow the customs or rules of a group

He's always been a (bit of a) maverick in the world of fashion.

political mavericks [=nonconformists] m-w

An unorthodox or independent-minded person; a person who refuses to conform to the views of a particular group or party; an individualist. Also in extended use. OED

They celebrated the operator as ingenious, independent, and subversive — a maverick who flouts the rules and blithely transgresses social boundaries. Joan Roberts; Cracked: How Telephone Operators Took on Canada's Largest Corporation

The maverick "grammatical" reflections in How to Write have hardly anything to do with everybody's grammar, which is more than once sacrificed in the text. They hint at a grammar of invention, of literary language as understood by Stein. Writing for her had "nothing to do with the human speech." Claudia Franken; Gertrude Stein, Writer and Thinker