According to wiki and dictionary
http://en.wikipedia.org/wiki/FreethinkerFreethought is a philosophical doctrine that holds that beliefs should be formed on the basis of science and logical principles and not be comprised by authority, tradition, or any other dogmatic belief system that restricts logical reasoning.
http://dictionary.reference.com/browse/freethinkerFreethinker is really
One who has rejected authority and dogma, especially in religious thinking, in favor of rational inquiry and speculationSo freethinker is really a weaker form of atheist
