freethinker
n. கட்டற்ற பகுத்தறிவாளர், சமய மூட நம்பிக்கைச் சார்புகளற்ற தற்சிந்தனையாளர்.
Free"think`er, n. Defn: 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. Atheist is an old-fashioned word: I'm a freethinker, child. Addison. Syn. -- Infidel; skeptic; unbeliever. See Infidel.