Freethinker(n.) One who speculates or forms opinions independently of the authority of others; esp., in the sphere or religion, one who forms opinions independently of the authority of revelation or of the church; an unbeliever; -- a term assumed by deists and skeptics in the eighteenth century.
Freethinking(a.) Exhibiting undue boldness of speculation; skeptical.
Freethinking(n.) Undue boldness of speculation; unbelief.

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