free-thinking

Adjective

 * 1) Having opinions that are contrary to dogma or the positions of authority.
 * 2) * March 14, 2018, Roger Penrose writing in The Guardian, 'Mind over matter': Stephen Hawking – obituary
 * His background was academic, though not directly in mathematics or physics. His father, Frank, was an expert in tropical diseases and his mother, Isobel (nee Walker), was a free-thinking radical who had a great influence on him.