Exactonist 

A person who must always have the exact definition or amount of something.

"Akane was being an exactonist about the number of money she received"

Exactonist by Spencerhalo July 23, 2020

Exactist 

A made up word used by an uneducated individual who doesn't like when their verbal grammer errors are pointed out to them. Directed toward the person who corrected them.

*Calls phone number, but no one picks up the phone *
"Uh, It didn't work."
"You mean, no one answered the phone."
"You're an exactist."
"You're an idiot, that's not even a word."

Exactist by MakeMeMadMan August 30, 2016

Exactionist 

Person who gets everything to a T. A perfectionist, but naturally

She gets everything exactly as is should be. She’s an exactionist.

Exactionist by The guy who gets it December 26, 2023