Freethinking

1. (n.) Undue boldness of speculation; unbelief.

2. (a.) Exhibiting undue boldness of speculation; skeptical.

Thesaurus Entries

broad-minded, broad-mindedness, catholicity, free thought, humanism, latitudinarian, latitudinarianism, liberal, liberalism, liberalistic, liberality, liberalness, liberation, libertarian, libertarianism, libertine, libertinism, open-minded, open-mindedness, secular humanism, tolerance, tolerant, toleration, unbigoted, unbigotedness