What is a antonym for Magician?

There isn't a single perfect antonym for "magician" because it depends on what aspect of the word you want to contrast. Here are some options depending on your context:

Focusing on the illusion aspect:

* Realist

* Skeptic

* De-bunker

* Rationalist

Focusing on the performance aspect:

* Amateur

* Non-performer

* Audience member

Focusing on the supernatural aspect:

* Non-believer

* Scientist

* Rational thinker

Other possible antonyms:

* Trickster (if you want to focus on the negative aspects of a magician)

* Beginner (if you want to focus on skill level)

Ultimately, the best antonym for "magician" depends on the specific situation and what you want to emphasize.