Skeptic /(?)/

Skep·tic

Skeptic

n.
  1. One who is yet undecided as to what is true; one who is looking or inquiring for what is true; an inquirer after facts or reasons.
  2. A doubter as to whether any fact or truth can be certainly known; a universal doubter; a Pyrrhonist; hence, in modern usage, occasionally, a person who questions whether any truth or fact can be established on philosophical grounds; sometimes, a critical inquirer, in opposition to a dogmatist. (Metaph.)
    All this criticism [of Hume] proceeds upon the erroneous hypothesis that he was a dogmatist. He was a skeptic; that is, he accepted the principles asserted by the prevailing dogmatism: and only showed that such and such conclusions were, on these principles, inevitable.
  3. A person who doubts the existence and perfections of God, or the truth of revelation; one who disbelieves the divine origin of the Christian religion. (Theol.)
    Suffer not your faith to be shaken by the sophistries of skeptics.
    — S. Clarke.

Skeptic

a.
  1. Of or pertaining to a sceptic or skepticism; characterized by skepticism; hesitating to admit the certainly of doctrines or principles; doubting of everything.
  2. Doubting or denying the truth of revelation, or the sacred Scriptures. (Theol.)
    The skeptical system subverts the whole foundation of morals.