Prōb'a·bil-ist, n.

n. [Fr. probabiliste.]

1. One of those who maintain that certainty is impossible, and that probability alone is to govern our faith and actions.
2. (Morals & Theol.) One who maintains that a man may do what is probably right, or is inculcated by teachers of authority, although it may not be the most probably right, or may not seem right to himself.