what is the opposite of pedant

I saw my girlfriend wearing a beautiful pedant around her neck.

Oops, I think that should be "pendant", something that hangs.

To use "pedant": Oh, don't ask her, she'll insist you don't split your infinitives! She's such a pedant.

The pedant is inveigled into impersonating Lucentio's father Vincentio. When the real Vincentio shows up, the pedant, not recognizing him, insists that he, the pedant, is in fact Vincentio.

pedant

a know-all
or: pedantic