вольнодумец bedeutet auf Englisch

freethinker [freethinkers]▼(person who has formed his or her opinions using reason and rational enquiry)
noun
[UK: ˈfriː.ˌθɪŋkə(r)] [US: ˈfriː.ˌθɪŋkər]

maverick [mavericks]▼(one who creates or uses controversial or unconventional ideas or practices)
noun
[UK: ˈmæ.və.rɪk] [US: ˈmæ.və.rɪk]