The literal opposite of a genius. i.e. the previous poster of the definition of this word (a negative and a positive do not make a double negative).

An anti-genius cannot be any simpler to explain.
"I can't believe that guy thinks he's so smart. He's an anti-genius."
by UnknownDJ November 21, 2021
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Someone who is smarter than luck, smarter than genius and smarter than brilliance. Elon Musk, Steve Jobs, Bill Gates all fall in this category. Anti is a negative word, genius is a positive word which makes it a double negative.
by Skyman88 January 27, 2020
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