Voltairean UK /vɒlˈtɛə.ɹi.ən/US /vɑlˈtɛ.ɹi.ən/adjective 1noun 1forms 3 adjective1 •Of or pertaining to François-Marie Arouet (1694-1778; pen name "Voltaire"), French writer, essayist, and philosopher known for his wit and defence of civil liberties."What do you want? Nineteenth-century rationalism, Voltairian deism? We're living in a religious age, you know. I suppose Anglicanism might be a solution." — 1959 noun1 •A person who subscribes to the philosophy of Voltaire.Then hearing that I was a Darwaysh and doctor—he must be an Osmanli Voltairean, that little Turk—the official snorted a contemptuous snort. — 1855 formsVoltaireans · more Voltairean · most Voltairean