Freethinker

• POS: Adjective, Noun
• HYPHEN: free=think=er

CIDE DICTIONARY

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.  [1913 Webster]
"Atheist is an old-fashioned word: I'm a freethinker, child."

Syn. -- Infidel; skeptic; unbeliever. See Infidel.

OXFORD DICTIONARY

Freethinker, n. a person who rejects dogma or authority, esp. in religious belief.

Derivative

freethinking n. & adj.

THESAURUS

Freethinker

big person, broad-gauge person, ecumenicist, esprit fort, free lance, free spirit, free trader, humanist, independent, individualist, isolationist, latitudinarian, liberal, liberalist, libertarian, libertine, mugwump, neutral, nonpartisan, rugged individualist, secular humanist, third force, third world

ROGET THESAURUS

Freethinker

Irreligion

N irreligion, indevotion, godlessness, ungodliness, laxity, quietism, skepticism, doubt, unbelief, disbelief, incredulity, incredulousness, want of faith, want of belief, pyrrhonism, bout, agnosticism, atheism, deism, hylotheism, materialism, positivism, nihilism, infidelity, freethinking, antichristianity, rationalism, neology, atheist, skeptic, unbeliever, deist, infidel, pyrrhonist, giaour, heathen, alien, gentile, Nazarene, espri fort, freethinker, latitudinarian, rationalist, materialist, positivist, nihilist, agnostic, somatist, theophobist, irreligious, indevout, undevout, devoutless, godless, graceless, ungodly, unholy, unsanctified, unhallowed, atheistic, without God, skeptical, freethinking, unbelieving, unconverted, incredulous, faithless, lacking faith, deistical, unchristian, antichristian, worldly, mundane, earthly, carnal, worldly minded, irreligiously.