Freethinker

[Sarah]

One who speculates or forms opinions independently of theauthority of others; esp., in the sphere or religion, one who formsopinions independently of the authority of revelation or of thechurch; an unbeliever; -- a term assumed by deists and skeptics inthe eighteenth century.Atheist is an old-fashioned word: I'm a freethinker, child. Addison.

[Sarah]

One who forms their beliefs based on reason and science, and not on religion, authority, or tradition.
Despite what the term actually means, it is used by condescending people to describe themselves.
The irony of people who refer to themselves as freethinkers is that even though they believe they formed their opinions solely on reason and science, modern psychology disproves that people are capable of that.

[Sarah]

Someone who comes to their own conclusions about the nature of existence and the world, based not on the notions of others nor by adhering strictly to any particular dogma, but rather through their own senses and thought processes.

Also a term hijacked by the Militant New atheist Media Machine to be essentially synonymous with atheist, with the not-so-subtle implication that self-generated thought and personal common sense MUST lead EVERYONE to conclude that there is no god, and that no one who comes to believe in a god of any sort, religious-based or abstract, may truly be a freethinker.

[Sarah]

A follower of the freethought movement. Not to be confused with a [free thinker].

[Sarah]

A person whose only believe is science and not god. Some freethinkers believe that god has abandoned us for a long time ago.