Synonyms for Rousseau (same or very similar meaning)
WordNet sense 1 (French primitive painter (1844-1910)):
Henri Rousseau, Le Douanier RousseauWordNet sense 2 (French philosopher and writer born in Switzerland; believed that the natural goodness of man was warped by society; ideas influenced the French Revolution (1712-1778)):
Jean-Jacques RousseauFrom the ODE community, based on WordNetadd/edit