free-willer

noun4

1. •
   A person who believes that human beings have free will.

   • Here's the challenge to a free willer: Find me the neuron that started this process in this man's brain, the neuron that had an action potential for no reason, where no neuron spoke to it just before. — 2023
2. •
   (disapproving, historical) A person belonging to a sect that rejected the doctrine of predestination.

   • Since all are by nature alike children of wrath, I would know of these free-willers, how some become the children of God, & beleevers, & some abyde vnder the wrath of God? — 1614
3. •
   A person who exercises free will.

   • The Americans are free-willers, fussy, self-asserting, buzzing all round creation. — 1847
4. •
   (US, historical) An immigrant to the United States who, upon arrival, voluntarily became an indentured servant.